Total Achievements: (51)
100% completion time: ~8-20 hours (Varies).
Difficulty modes:

• Peaceful Atom
  
• Local Malfunction
  
• Armageddon (Recommended)

New Game+: Yes
Missables: Yes
Mode: Single-player

Achievement Types:
I. Base Game
1) Story Related: (19)
2) Collectable: (15)
3) Kill: (5)
4) Miscellaneous: (3)

II. DLC Expansion #1: Annihilation Instinct (9)
Base DLC #1: (9)

We will complete all 42 achievements on Atomic Heart in Armageddon. You only need one playthrough on this game which is fortunate and since this is their first game so will achievement bugs appear, that is why I wrote this guide to help me through and two months of waiting just to get this 100% but it was finished so be warned. In reference, there are 44 missions they are story-related. When playing other difficulties, keep in mind no enemy encounter story wise will change.

To achieve 100% on the game especially the DLCs:

Complete main story in Armageddon

Complete secondary miscellaneous while progressing

Get all collectables: Recordings, corpses, blueprints, upgrades (not all but only one skill tree to max), weapons, dungeons, scan enemies.

Complete all DLCs (1/4)

I made two separate sections: Story and all checklist after that. These will be in order of what I do and at the same time triggering achievement points, however keep in mind there are buggy achievements, while I think the devs are working on fixing them also there is always a domino effect of after patches this will break it

We need to scan all 35/38 mobs which includes enemies who appear rarely so scan them as many times as you can, this however triggered in a weird spot so not all but I got 33 enemies scanned so yours may not replicate mine on that but I provided many of the mentioned spots so you won't feel left out. We need 72 burning ears and 50 corpses with 3 animal corpses additionally but they are basically in the spot you'd expect so follow all the images or my roadmap text and we will get most achievements.

You will miss almost a lot assuming this is your first time, in fact you can miss each while fighting bosses, progressing through the story and obviously collectables because mission areas are just locked once you completed them but not Open World at least your free to do them. You will also get a no point of return during the very late game that will prevent you from backtracking to areas you miss as such so before dropping down on the area you must explore of course. However, there is an option to go back to Facility 3826 so considering you can check back but still as you progress through the story you should not miss anything even the saves are limited by the capacity you see but you can not go back to the very start so make sure to explore as much before the game decides to play the cutscene and lock you out you will know it soon.

We can get them all but however do not forget to grab blueprints, they will be generated in order hence no fixed blueprints so regardless you can grab a second blueprint and get the same material or weapon on any areas but I sorted in order of where I found them. The last you'd expect to get before the dungeons is a Railgun, in my opinion kind of useless you'd be better off with Dominator and the Zvezrochka even ballistics as you need to conserve them unless you looted so much you'd be front loaded with everything on Armageddon and NG+.

On the explore sections, I included all 4 weapons at their respective spots, you will find them so you can add them for Lord of War and get additionally materials. Remember the materials will be 100% refunded to you so don't be afraid to scrap them. The blueprints additionally I included is inside Testing Grounds but I think those are fixed areas you can check by the map on Polygons area what are the attachment and upgrades needed.

All four weapons including one copy last you find will be the first to make their appearance if alternatively you do not want to craft them except for the first two but really there is not a lot to find but you will find all of it as you explore.

Lastly, Testing Ground is unlockable by reaching the Open World section. They are dungeons for you to explore and there are only 8 of them. Each chests contains attachments needed to make your guns perform excellent, but your free to explore them until you proceed to the next objective you will progress story-wise until you reach Testing Grounds 8.

Additionally, you may also disassemble the weapon you found if you crafted them already so the full refund are all there.

Note before you begin: For some reason take this with grain of salt but the devs had not patched this. Basically you switch Normal to Armageddon and still get the Atomic Heart Achievement in the end, thanks to Undefined_user_ for testing this but it's up to you to try this.

There will be more DLCs soon but just have to wait for more info on it, the season pass you saw has 4 DLCs mentioned on it so consider waiting for more stuffs on this guide before or after you finish this game.

Achievements may not be what you do in order as mine so overall you might earn this on this story, after all this is an open world I can loot everything before continuing the story so the guide will be like it here but follow along and you will get a 100% on this game.

There are all areas of collectibles, corpses, stories and the checklist to get them are non-demanding, you just need to find them and make sure to follow what the description states.

• You can reload your previous save after doing achievements such as Weapon Master to save time or disassemble them again and use it back on your pre-existing weapons.

• Freely explore the Open World before going to the story especially in hard. If you are like me who obsessively loot you will not have a bad time.

All achievements and also blueprints. Use CTRL + F to your advantage, after all I made sure everything should be straight forward as it presents itself to be.

Take what I found from the image and make sure to find/scan and collect. Trackers are really in a weird spot to accumulate those numbers. If achievements are broken, just to remind that the patches may break one achievement or other (Atomic Heart fixed at this patch and next patch will make Atomic Heart broken to obtain).

Most achievements I can earn is on the Open World, the rest are exclusive on any levels so something like the alcoholic achievement although originally inside Vavilov complex can still be earned on the Open World because there are consumables.

Main difficulty I choose is Armageddon, in easy and normal those are the last thing you can do if you miss collectibles or scans so probably since corpses despite finding them all I miss thanks to the bugs I will do it according to the achievements.

Credit to the guides in order to double check:

• 100p Guides: https://www.100pguides.com/guides-by-game/atomic-heart
  
• 100Guides: https://www.youtube.com/@100Guides
  
• Lordacris: https://www.youtube.com/@Lordacris/featured

2024-02-07 | 08:31: No achievements for DLC #02.

2024-04-24 | 21:26: Erased all Scanner sections and replaced with all text.


Additionally, I may had downloaded that media link for the uncensored clip but here it is, thank you and enjoy the game :)
https://steamproxy.net/sharedfiles/filedetails/?id=2939272384

The rest of the weapons can be crafted the following:
Axe, Shotgun, Electro, MP, Kalash, Fox, Pashtet, Snowball, Dominator, Zvezdochka, Fat Boy, Railgun. After all of 10 weapons crafted (2-3 found), you should get the Lord of War achievement.

2023/02/20: Due to the bugginess of trackers (Numbers reset and being too inconsistent), I have added not confirmed despite achievement pop-up down below but wait for the patch and after that confirm if these mobs add up to your achievement numbers. Also I left almost all the same mob posts in there because the tracker never updates and thus its confusing to make it direct.

Scanning all the mobs who attacks you will grant +1 on this achievement. All images are in order of first appearance. There are 37 mobs to scan according to the tracker in Steam.



They are all recordings, keep searching for them and one will appear on your left side to play a recording. According to the first findings, they are all in chronological order. There is only 72 chirpers according to what I found.



Later on you will be able to talk with the dead corpse starting from the Vavilov, a total of 50 corpses present, the few are corpses without the dialogue option that you choose. Just talk to every dead bodies to make sure, from what I can tell find a Chatty Corpse that is where you might get a pop-up for this achievement.

Some will be out of order due to the bugginess of achievements before 100%. Anyways, feel free to copy and put them on your notepad.

acowsik in this guide mentions of the blueprint for Klusha - Handle of the following:
Blueprint can actually be found in the swamp area before you even visit the lab to obtain the Secateur weapon.
There are a total of 5 Aloniks
Steam word limit had made me write it here.

1) NG - Chelomey City - Prologue, Vavilov
2) Burning Ears: 7/72
3) Necromancers: 2/53
4) Weapons: 3/12
5) Blueprints: 5/63
6) Scanners: 3/38
7) Achievements: 3/51
-----------------------------------------------------------------------------------------------------

We don't find any collectibles this chapter, only a missable and story-related.

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How Can I Help You?
Use a phone booth at Chelomey
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Achievement #1: Location: Chelomey prologue. According to where you are near the fountain, you will come across on your left side the pay phone booth, interact on it and wait for a moment.

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Happy Polymerization Day!
Fly out of Chelomey
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Achievement #2: Location: Chelomey prologue before exiting. This is your no point of return #1 since one missable is exclusive there.


There will be more to list here so refer to the other sections as such here we go.

Weapon #1 - Swede: After waking up not long we do telekenesis the weapon to us and we have it, of course you can craft it again should you as well.

Scanner #1 - VOV-A6 Lab Tech: Should find Vovas scattered around.

Our hunt for Burning Ears begin here, don't worry the corpses for Necromancer will be seen inside Vavilov as you progress.

Burning Ears #1: As you get the valve, grab the burning ears near the corpse (not this Necromancer corpse yet)

Weapon #2 - KS-23: You will grab the weapon from him, this can also be craftable if you scrap it but no worries just keep it unless you run out of space drop it to the storage.

Tip: Save often, really if your playing Armageddon and screw up much often just save, there are numerous save stations after all although there are only limited saves that'll be visible on main meny so keep it in mind as you overwrite saves. Additionally, loot everything we might need them for Polymerization achievement which is on enemies.

Burning Ears #2: After destroying a Vova, jump to the left broken window, a chirper on desk is waiting.

Burning Ears #3: Right side is a room inside, find a way inside and kill one enemy.

Burning Ears #4: Exit out, you will find it in the middle just watch out for few enemies.

Burning Ears #5: Inside the restroom to your left consist of loots and one Vova, grab the chirper at the opened stall door.

Go forward and later a cutscene plays out.

Scanner #2 - VOV-A6/CH Lab Tech: You have to defeat this mini-boss who will later be common.

Blueprint #1 - Small Neuromed Capsule: Before meeting NORA via cutscene, you will come across your first chest, this is always where one blueprint is inside.

Burning Ears #6: You will find it outside on the wooden box front.

Enter through the door for the next mission.

We will revert back to Wanted Dead or Alive: Viktor Petrov after fixing the elevator and opening the door with SHOK.

Scanner #3 - Dandelion Security CCTV Camera: As close to getting the key for the door you will first encounter those security cams, which will be appearing in open world.

Burning Ears #7: To your right before the key for the door, a chirper on the desk.

Backtracking after grabbing the key, solve the puzzle this will open an elevator but when going back to the two elevator when in doubt follow your guts :)

Blueprint #2 - Shotgun Shells: Missable, grab it inside the next saferoom which would be mostly what takes place inside Vavilov for every blueprint.

Back to the area where you previously are, move forward to the locked door.

Blueprint #3 - Swede - Handle: So after dealing with few Vovas using your new SHOK ability, there is a next saferoom door on your left before moving forward.

Through the next area, we can finally find another saferoom and our first talking corpse. We can craft these weapons later after Vavilov or anywhere late just have enough materials in one go to craft them.

Necromancer #1: Go interact with it while trying to solve the puzzle door

Weapon #3/Blueprint #4 - Fox: Inside the saferoom, your new weapon for the achievement to craft five different weapons.

After some code solving, enter the cable car, you will be dropped later to the area to move forward. This is your no point of return #2 so explore a bit

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Polymerization
Collect 100 jelly
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Achievement #3: You can get 100 neuropolymers during your whole walkthrough since there's a plentiful amount.

Necromancer #2: After traversing and moving to the next area, you will find a corpse lying flat.

Blueprint #5 - KS-23 - Electromagnetic Bar: Really just move forward and you will see it.

Move on until you can hit the no point of return #3 which is the cutscene and your new hub also the place where you must collect four items to unlock the last area sooner.

1) NG - Vavilov, Archives, Seed Bank
2) Burning Ears: 11/72
3) Necromancers: 3/53
4) Weapons: 5/12
5) Blueprints: 11/63
6) Scanners: 9/38
7) Achievements: 6/51
-----------------------------------------------------------------------------------------------------

Scanner #4 - WSP-9 Pchela: They are coloured blue, most common along with other two pchelas later.

Burning Ears #8: At the middle.

Necromancer #3: One corpse before crossing the vent.

Weapon #4 - PM: Dropping down, to your left is the first Makarov you can have, no need to craft it and we need it also for Lord of War.

Burning Ears #9: Before grabbing the candle ball.


Blueprint #6 - Electro - EMP Generator: When you pass by the forklift robot, turn left before going down to the next area.

Burning Ears #10: You will go up and find it near the door where the Seed Bank is located at.

Go through the door where you will be swimming through, the next area will grant you few items to get and an achievement.

Weapon #5/Blueprint #7 - Electro: We get this upon entering through the door where NORA is.

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Artisan
Create a weapon in a crafting machine
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Achievement #4: You will get this either crafting any weapon but in this case we craft the Electro. plus this will add up to your Lord of War achievement.

Proceed, do not forget to grab the Canister.


Blueprint #8 - PM: Keep right to the next saferoom, a chest awaits. If you've not found a weapon before already then here is your chance as always you can craft it.

Scanner #5 - GMC-69/P Vatrushka: They are coloured red and will appear sometimes in the later game.

Scanner #6 - WSP-9 Laser Pchela: They can be found also everywhere in open world well sometimes.

Scanner #7 - LUC-1 Owl: These are the unarmed owls, later on we get fewer owls such as the laser and rocket missile types.

Scanner #8 - GMC-69/O Vatrushka: They are coloured yellow and appears sometimes. According to Lordacris' location for them, it can be found in on the spot at 1:55

Proceeding near where the next area is, before the 13th of March 2023 you can be able to loot infinitely and one item is the vodka from where the Owls are plus more loot, drink 1-2 and shoot all the Vovas, then reload if you want after all the numbers will still be saved on the other hand (refer to Polymerization achievement).

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Alcoholics Anonymous
Get drunk with vodka and kill 5 enemies
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Achievement #5: You can find them during your progress in the Open World, you can try again if you can't get them all.

Proceeding next to the top where your next area is and few more loots.

Blueprint #9 - PM ammo: Get inside the save station where the ammo type for this pistol will be waiting, at this point we will find consumables more.

Blueprint #10 - Fire cartridge: Move forward to the chest near the stairs.

Scanner #9 - GMC-69/L Vatrushka: White coloured and last of the Vatrushka group you scan, they are on your view as you move up the stair.

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Bull's Eye!
Use Telekinesis to throw an object and knock down an Owl
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Achievement #6: The Owl should be knocked out and exploding after colliding to the wall.

Blueprint #11 - Medium Neuromed Capsule: After the door puzzle, move forward before the left area to get to the top.

Burning Ears #11: This might as well be story-related, near the corpse of 'Viktor' we can grab the key item and this.

Backtrack to use the candle ball near the PEC-4 Birchtree, we can proceed to the next areas for the four canisters in each doorways.

1) NG - Vavilov, Workshops
2) Burning Ears: 23/72
3) Necromancers: 9/53
4) Weapons: 8/12
5) Blueprints: 19/63
6) Scanners: 20/38
7) Achievements: 8/51
-----------------------------------------------------------------------------------------------------

Everything Illuminated quest title is also in the endgame boss but no idea why it's here as I check numerous Atomic Heart related videos and images, for now I will keep it one by one.

We need four canisters, I will divide each sections and you can follow along. Depending on where you go the numbers in this list stay where they are. By sorted in order I will choose hot/algae > cold/pesticides due to where I explored first and probably I thought as well no choice but to get this cleared, this will ensure I can add the numbers in order but however by the time you are done with pesticides area the number should be back in order.

Note: I included a Lab Tech on Scanner #10 that is basically a damaged and barely working version of Vovas but scan it just in case, you will never know and maybe you got a habit of scanning many enemies like me but I carefully find a new name with or without a letter/number in it, afterall achievements of scanning is buggy in the past.


Burning Ears #12: At the box.

Blueprint #12 - Electric Cartridge: Enter inside before.

Blueprint #13 - Dynamo: Straight forward from where the chirper is, go to the next saferoom.

Weapon #6/Blueprint #14 - Pashtet: Turn left before forward to the boiler room, there is another area where a chest is waiting on the door.

Blueprint #15 - Ice Cartridge: You can't enter the area where you take damage due to the extreme heat so you go right.

Go down the stairs to where the boiler room is.

Scanner #10 - Lab Tech: Not the strongest type.

Burning Ears #13: Where you insert candles into the tube, on the workbench station.

Burning Ears #14: Go up and look to your left.

Blueprint #16 - Adrenaline Capsule: Forward to the saferoom.

At this point you will get the boiling room controlled. You can grab the canister and move to the next workshop.

Burning Ears #15: Near the canister you will find it.


Scanner #11 - Mutant: Immediately open the door and you will see them still on that area.

Burning Ears #16: On the table

Scanner #12 - Poison Mutant: Just to the left room. You will see them on the Open World too.

Scanner #13 - Fire Mutant: Ahead. You will see them also later at Pesticides from where I found them.

Necromancer #4: Go forward and turn right

Blueprint #17 - Pashtet - Blade FL Magnetic Field Generator: Go to the saferoom and grab an upgrade for this.

Drop down and go up the stair, oh yeah there are few RAFs around. If you miss a some enemies to scan you can find them on the pesticides this should include sprouts and even mutant variants.

Scanner #14 - RAF-9 Engineer: At the bottom.

Necromancer #5: Go up before grabbing the empty canister.

Burning Ears #17: When putting the empty canister, you will find it on the box.

Scanner #15 - LUC-1 Laser Owl: While waiting the lift to move slowly and using SHOK to speed the machine, you will find them coming towards you.

Now to put the two on the center birchtree, we can move to the next two workshops. Also the door you came from will close permanently so don't miss something.


Necromancer #6: You can find the corpse on the hallway end upon entering.

Weapon #7/Blueprint #18 - Snowball: From the corpse you found, go right and you find a saferoom also where you should be going.

You will see more enemies, do not forget to scan them as you enter that area by the vent.

Necromancer #7: Before the vent is a corpse.

Scanner #16 - Mother: You will find them on the open area.

Scanner #17 - Sprout: You will find them also here.

Burning Ears #18: At the table where mutants are.

By the animal puzzle completed, you will be at the open area where you find a third canister.

Burning Ears #19: Near the plants on front and left of stair between.

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Assimilation Procedure Interrupted
Don't let a sprout grow into a mutant
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Achievement #7: Once the sprout enters on the head corpse, kill it in haste.

So after fighting and defending, you can go through that door inside, you will find one of the most useful weapon.

Weapon #8/Blueprint #19 - Kalash: As you go down, go right and get your early weapon to use and craft, this is my personal favourite of a gun.

All blueprints are finished in this level, now to few other collectibles.


This is the final area for this level, there will be few collectibles and scanner so stick with this. Find a way inside this workshop, cutscene will play out and you will begin this next goal.

Burning Ears #20: At the corpse and the chest on stair.

Necromancer #8: Go forward down the stair.

Burning Ears 21: Go up the stairway where the railway is.

Burning Ears #22: Next area where the spinning platform is.

Necromancer #9: While jumping to find the last corpse on top.

Truly, solve the pesticide container puzzle and then kill the boss to grab our last canister. With that comes our few collectibles left.

Burning Ears #23: Near the destroyed metal platform.

Scanner #18 - Poison Sprout: They appear there and then on Open World

Scanner #19 - Fire Sprout: Appears here.

Scanner #20 - Large Mutant: Appears here when the lockdown initiates.

Proceed to the birch tree area, you are done here.

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Pistils and Stamens
Get out of Vavilov
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Achievement #8: Location: Exiting to Hawk Forester. First time having a true no point of return though there were few in other areas this one has you getting to the new level.

1) NG - Hawk - Forester
2) Burning Ears: 28/72
3) Necromancers: 13/53
4) Weapons: 11/12
5) Blueprints: 26/63
6) Scanners: 23/38
7) Achievements: 10/51
-----------------------------------------------------------------------------------------------------


Scanner #21 - WSP-9 Patrol Pchela: They are coloured red and are commonly found when you destroy dandelions or simply they roam around.

Blueprint #20 - Kalash Round: At the top floor on the house.

Blueprint #21 - Snowball - Handle: Refer to the map.

Scanner #22 - MFU-68 Laborer: Can be found near where you are able to scan them on houses, just be careful with them.

Scanner #23 - MFU-68/CP Duck: Inside the house.

You can find a Makarov on the area where the corpse is, just near where the CP Duck is.

Burning Ears #24: Same area.

Burning Ears #25: Find a scarecrow and hit it.

Burning Ears #26: At the statue of the dog.

Burning Ears #27: At the table near the lockpicking puzzle.

Burning Ears #28: At the top of the tower.

You can proceed to where Granny Zina is.

Weapon #9/Blueprint #22 - Dominator: Upon entering her house, wait and watch the cutscene and interact few times with her until you can be able to grab the new weapon

As we can be able to hack doors by the Volan device and move along the road, refer to the sections for the blueprint locations, the last you'd see for this level is the train station, make sure to note if you found exactly what I find.

Blueprint #23 - Large Neuromed Capsule: Around the cargo metal container

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Lefthand Mastery
Fully upgrade one skill tree
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Achievement #9: You should have enough polymers to upgrade any skill tree, SHOK is recommended.


Blueprint #24 - Electro: At the top what seems to be a tower with spiral staircase.

Weapon #10/Blueprint #25 - Zvezdochka: This is easily one of the best weapon. Use this when you're exploring open world plus your not limited by how much you use.


Weapon #11/Blueprint #26 - Fat Boy: This is also a good weapon and stock up much missiles to fight against bosses but you'd find a lot by looting

Unless you interacted with all four corpses begin the quest to find a train ticket, it's on the corpse where the house is.

Refer to more sections with Open World etc.

Necromancer 10-13: All corpses mentioned.

After that, choose the dialogue that allows you to sit and board the train via cutscene playing also, this is a no point of return so you cannot go back ever again, good luck to the Open World section.

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Tickets, Please!
Take a train at the Lesnaya Maglev train station
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Achievement #10: Location: Train from Hawk Forester > Open World.

1) NG - Open World, Polygon 1, 6, 9
2) Burning Ears: 36/72
3) Necromancers: 22/53
4) Weapons: 12/12
5) Blueprints: 40/63
6) Scanners: 30/38
7) Achievements: 18/51
-----------------------------------------------------------------------------------------------------

To more information on Polygons, check this guide:
https://steamproxy.net/sharedfiles/filedetails/?id=2937525164

Welcome to the meat of this game, where I will also explore every nook and cranny in this section. As always save often you'd need it more than ever. Some sections may be out of order or not perfect but I will put the mentions here being found such as collectibles.

There will be much more collectibles scattered so for now here are the numbers.

Burning Ears #29-36: Refer to sections.

Necromancer #14-22: Refer to sections. This and Burning Ears as well as finding Testing Grounds can be done so make sure not to miss them.

Scanner #24-30: Refer to sections. You will find each from outside, inside of testing grounds and of course on exclusive areas like I mentioned.

Blueprint #27 - Zvezdochka - Handle: Found at the Polygon 6 radius.

Weapon #12/Blueprint #28 - Railgun: Found at the Polygon 6 radius. You can later find and refund materials.

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Below Zero
Freeze a Vova mid-air
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Achievement #11: During the Open World area, get Absolute Zero upgrade for your frostbite and just freeze the Vova, weird enough you can freeze him without him on mid-air and you will obtain it.

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Hands on the Hood
Hit 20 enemies by a car
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Achievement #12: Destroy all 20 robots by ramming your car against them, can do this also in Hawk - Forester also to build up the numbers. Cars vary in hits based on difficulty but if this is your first walkthrough on Armageddon then find more cars.

On the other hand, I would recommend upgrades for Zvezdochka, Dominator, Fat Boy, MP and the Kalash. It's personal preference after all.

Note: This Polygon is in order of where I do them, the one I sorted on the other section goes like this: 1, 2, 6, 8, 9, 10, 11, 12. The 5 chests per Testing Ground occurs on 8 and 12 for reasons but that may be why they need to be unlocked by progressing through the story, the rest of chest amount are 4 per Testing Ground.


Blueprint #29-32: We will be doing this until we get three achievements for Testing Grounds, for more information refer to Testing Ground 12 section from the Parts.

Blueprint #33-36: Of course consider other achievements like the previous one if you miss miscellaneous relateds.

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Chemist
Craft consumables of all types
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Achievement #13: Before going forward, we can go to the saferoom and craft all 6 in the consumable section and yes even one refunds your resources 100% so I suggest doing this. This can be obtained during Open World section.

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Weapon Master
Create five types of weapons
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Achievement #14: After collecting upgrades from two silver chests, head to the next saferoom and craft each weapons in one go. You need to have all five blueprints at the start or craft them all at once. You can craft this anywhere but I crafted it here due to the buggy part of it so yeah that sucks, but anyways craft the following:

• Electro
  
• MP (Alternative)
  
• Pashtet
  
• Fox
  
• Dominator
  
• Zvezdochka

Blueprint #37-40:

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The Great Inventor
Upgrade a weapon to the maximum level
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Achievement #15: Before you unlock the door to the Testing Ground you can go to the saferoom and then in it you use all your mats to fully upgrade the Swede, any weapons seem fine but the axe has no neuromodule which are dropped from bosses. Use this opportunity by refunding all mats 100% to unlock the achievement and then reload your old save.

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Hothead
Make 25 aimed headshots from Makarov pistol
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Achievement #16: Earning this can be anywhere but I did get this while fighting against Plyusch. Making headshots easier by using glove powers is allowed as long as you aim their heads and kill them not by your gloves or melee.

Tip: Axe + Makarov 1 shot instead of two work wonders and you will still get the pop-up

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Plyusch
Kill Plyusch
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Achievement #17: After you kill the Plyusch in this Polygon testing grounds, you will unlock this achievement. Alternatively, you can get this also throughout the story where one Plyusch is going to get out and begin emerging via tube or is waiting out or inside. As long as you're stocked with lots of ammo and upgrades also cartirdges with good loadout you can kill Plyusch in such a trivial manner.

Like I said this is a story-related part so after earning this you don't need to worry. You will fight him first during VDNH then progressing through the whole game there are few of them that appears such as the Theatre, Bridge and Pavlov.
https://www.youtube.com/watch?v=NeSkqhJ4e54

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Lord of War
Collect all weapons
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Achievement #18: Still at Polygon 9, we will get this after crafting the Railgun inside or outside during your Open World exploration because we have the one material, Neuromodule, from Plyusch. Any weapon you crafted last should also do it.

1) NG - Open World, 10, 2, 11
2) Burning Ears: 36/72
3) Necromancers: 25/53
5) Blueprints: 52/63
6) Scanners: 30/38
7) Achievements: 21/51
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Avatar
Kill 10 burning enemies, 10 electrified enemies, and 10 frozen enemies
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Achievement #19: I lost track of before where this is in order on my unlocks due to the bug months ago but you should get this anywhere in the Open World. You can make this easy by using cartridges and using your ability (glove) to ease this process.

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Triple Penetration
Kill 3 or more enemies with a single Railgun shot
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Achievement #20: Easiest is to do it on Polygon 8 of the Center where there is also Vovas standing but not a lot as well as three Pchelas, just use Mass Telekenesis and position yourself to use the railgun to aim and shoot.

We can clean up the remaining 3 Testing Grounds from here, as my memory serves me correctly I don't have any additional achievements earned here.

Blueprint #41-44:

Blueprint #45-48:

Blueprint #49-52:

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Beast Friend
Find all talking dead animals
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Achievement #21: Before or after the Testing Ground 11, you will find a bridge only unlocked as you complete Theater. Only 3 are present and at the same spot.
I talked to an invisible chicken and got the achievement despite it not being there so I got the achievement instant instead of talking to other animals.

2023/04/21: Same as Chirper, the achievement tracker numbers don't reset for me but I am sure all of the corpses should get you Necromancer despite some would never pop-up for me (+0 part). Frustratingly, you might not know so you need to not skip dialogues.

I will include the same info as you read the other sections, but here is the preview of what it looks like.
There are only three dead animals to talk to, here are the following:


Proceed to VDNH or inside Exhibition area after you search the Open World but you can always come back to some of the areas later on.

1) NG - VDNH, Exhibition
2) Burning Ears: 45/72
3) Necromancers: 35/53
4) Blueprints: 53/63
5) Scanners: 31/38
6) Achievements: 25/51
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As this is still in the Open World, we just proceed to the next objective in order to access the inside of the next Complex. Keep in mind all enemies you may find outside of Open World will be inside the next area so don't miss some of them to scan.

Burning Ears #37: Before pressing the button, grab the almost missable collectable on the ground at the center.

Scanner #31 - HOG-7 Hedgie: This boss is one-time encounter so do not forget to scan.

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Make It Go Round
Kill Hedgie
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Strike
Kill Hedgie without making a single shot / destroy all statues
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Achievement #22-23: Story-related but Strike is missable. Before entering Vavilov, Hedgie the boss in Armageddon is so easy you can just dodge with your melee no hitting if you have upgrades or doing it on easy, just zap the poles to activate the statue and let Hedgie hit the them. Make sure to keep distance and wait for few minutes after jumping it's shockwave attack. Hedgie will roll around and on the other hand will suck you in but you can do it without the running/dash upgrade.

Necromancer #23: While solving the puzzle the first corpse for this area.

Necromancer #24: Another corpse on the second room.

Blueprint #53 - Fat Boy Rockets: (Needs confirmation) Should be located here while solving puzzles.


Necromancer #25: When your inside, you should find a vent while a corpse is on the wall.

Burning Ears #38: Near the arm of some robot.

Burning Ears #39: Code found inside the room from the corpse, then enter inside.

Necromancer #26: When you solve the puzzle by entering on the left door.

Burning Ears #40: After a slow tour, you will be able to unlock the saferoom after talking to the Tereshkoba.

Necromancer #27: At the very top floor where she's near the chest.

Necromancer #28: Proceed down to the left side on the next floor.

Necromancer #29: The corpse near the door where she will unlock it.

Necromancer #30: Go up the stairs and to the left.

Burning Ears #41: You can find it after unlock the door via canister on lunar lock

Burning Ears #42: At this point you should be near Claire's body and the center is the chirper.

You can freely explore anywhere to find parts of her body.


Necromancer #31: Inside the submarine room

Necromancer #32: Later on, located at the puzzle from the outside after climbing up where the corpse is there also.

Necromancer #33: Going back and after wrecking the submarine by pushing the button, go up to the left.


Burning Ears #43: On this floor, you must move to the point where the massive whale diagram room is at, the chirper is on your right followed by the corpse.

Necromancer #34: The corpse who talks about whale trivia should be there on your right.

You will fight Plyusch here unless you got the achievement before you have a chance on other areas related to this organic boss.

Burning Ears #44: Before or after the boss, near his corpse.

Necromancer #35: Don't go up just go through the opened door after the boss, there is another locked door which is a shortcut but her corpse will be within this white room.


Burning Ears #45: By the inside room where the teddy bear and TV is.

Proceeding to Claire after all parts are collected, if you had not scanned enemies that existed on Open World do so because this is where it triggers a cutscene and you won't go back here unless you backup a save.

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Apple Pie
Pick all apples in Limbo
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Achievement #24: Missable. In the dream sequence after the cutscene at the end of Vavilov there are 99 apples in total and the tracker will reset as you reload the save or start a new save.
https://www.youtube.com/watch?v=ql8vS58C6lY
Here are the number locations:

• 12 Apples: Around the spawn area and before passing through the first polka dot uniform guy. Next, the two apples are on the slide to your right after him.
  
• 4 Apples on the bed
  
• 8 Apples as you move forward
  
• 11 Apples move forward then turn left
  
• 10 Apples, near the explosion when turning right
  
• 5 Apples, go back to the area to move forward until you stop. Then turn left.
  
• 16 apples, go forward on top of the submarine until you stop at your right.
  
• 13 Apples, collect all on the plane
  
• 14 Apples when you move forward until the next plane.
  
• 7 Apples when moving forward.

You should get the Apple Pie achievement.

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Quite an Achievement
Clear the VDNH complex
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Achievement #25: Location: After the Limbo sequence on Vavilov.

The next Polygon will unlock inside the Center of Sechenov's after beating VDNH.

1) NG - Center, Polygon 8, Theater
2) Burning Ears: 60/72
3) Necromancers: 44/53
4) Blueprints: 58/63
5) Scanners: 34/38
6) Achievements: 30/51
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As always following by the next objective to the center and then next to the Theater is where it's at.


Necromancer #36: By the restroom inside with the bloody corpse.

Blueprint #54-58: Elevator will unlock inside after activating three buttons via camera.

Scanner #32 - MA-9 Belyash: At this next arena is the boss who is also one-time, the real one not fake so we get our next scan here.

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Medium Rare
Kill Belyash
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Chop Chop Chop
Kill Belyash with a melee weapon
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Achievement #26-27: Story-related but Chop Chop Chop is missable.
Note: The real Belyash is the boss not the regular and you won't get the Scanner from the regular. This Belyash appears only before entering the Theater. Anyways to make this valid, here are what you need:

• Good melee weapon upgrades
  
• Can use cartridges
  
• Can use gloves
  
• Do not use guns or not trying to kill Belyash with guns as well as your glove ability if you accidentally do so.

Similar to Hedgie, this is piss easy boss to deal against. Belyash will also summon shockwaves to make you jump, luckily the way Belyash moves is rather predictable, melees like the Axe (easy) and Zvezdochka (hard) will do the trick.

However, if you did not get this achievement try to reboot the game then next time try using any item buff you got to make this easier (Shoutout to HodorDies in the comment on this guide for pointing it out).

Burning Ears #46: Before you take the elevator, it is important to search and find this as well.


Necromancer #37: Immediately turn right to find the corpse at the end.

Burning Ears #47: As you go further after the saferoom and the chirper is at the fridge.

Burning Ears #48: After Plyusch fight while crouching through the vents is at the table.

Burning Ears #49: At the right side while it's behind the robot display.

Necromancer #38: Make a jump to find a corpse on the top.

Necromancer #39: Perhaps this could be included but it might be broken.

Burning Ears #50: Near the TV room.

Burning Ears #51: Take the elevator back to the top floor where you move forward top still until you are in the next room.

Burning Ears #52: Same room as the previous chirper, after crouching through the vent.

Burning Ears #53: Now drop down and after fighting waves of robots, you will be able to access the other room.

Necromancer #40: At the chest room.

Necromancer #41: Next area by the counter.

Necromancer #42: Find the two corpses who regardless say the same thing is just one additional number to the tracker.

Burning Ears #54: Go up the next floor and at the corner.

Necromancer #43: Same floor

Burning Ears #55: If you want a quick answer, refer to chirper #46 for the combination from this website (Top two middle node 1 2 and last down left middle node 3: https://www.100pguides.com/guides/atomic-heart-all-collectible-locations

Scanner #33 - Large Fire Mutant: At this point I got the achievement in the weirdest spot so that is one but I guess it's due to bugs.

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Scanner
Scan all mobs
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Achievement #28: All you need is 35 enemies to scan but of course if you have the habit of scanning this is no problem.

Burning Ears #56: At the ballerina robot display.

Burning Ears #57: You will find this when you turn left of the puzzle room, this one is creepy sort of.

Scanner #34 - NA-T256 Natasha: Last Natasha can be found on the Testing Ground #12 so if you miss this without knowing do not worry.

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Show's Over
Kill Natasha
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Achievement #29: Pretty easy boss fight before the end of Theater level, any weapons will help but Zvezdochka and Fat Boy worked wonders. Natasha will use attacks such as the spinning and a barrage of missiles. During your other exploration, Natasha can be fought in Testing Ground #12 but you will already get the achievement when first encountered.

Burning Ears #58: By the red seats.

Necromancer #44: After you fight Natasha, you should be free to interact the main stage.

Burning Ears #59: By the ground.

Burning Ears #60: By the red chair before going up.

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Curtain
Finish a theater performance
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Achievement #30: Location: Maya Plisetskaya Theater exit. We can exit out the Theater to get this achievement.

1) NG - Polygon 12, Hospital, Pavlov
2) Burning Ears: 71/72
3) Necromancers: 53/53
4) Blueprints: 63/63
5) Scanners: 35/38
6) Achievements: 36/51
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The last Polygon is after the Theater which unlocks the bridge, look no further to your map as it's on the far Southeast and go there directly if you want to. Assuming you did all 7 of them before progressing the story, the 8th Testing Grounds shall be your last worry.


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Explorer
Find a testing ground
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Achievement #31: Enter by going inside the elevator so the achievement pop-up.

Scan Natasha so you get the number added.

Blueprint #59-63: Your last blueprints to get the final achievement well at least if you've been following and you can do this like I said after the game so no testing ground locked I even went back inside after completing them.

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More Than Profit
Find all Lootyagins
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Achievement #32: Get the last gold chest and the achievement will unlock.

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Clean-up
Complete all testing grounds
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Achievement #33: Finally, just enter the elevator and press the button to exit out the Testing Ground.


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Medical Checkup
Get to a hospital
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Achievement #34: Bottom right corner of the map and entering the hospital will unlock the achievement.

Burning Ears #61: Go up and find it on the stretcher.

Necromancer #45: The corner after the chirper.

Burning Ears #62: Behind the receptionist desk.

Necromancer #46: The left side moving forward, also this is where I got the Necromancer achievement but remember we need to reach 50 so it should be near to the end.

Necromancer #47: On the blue room.

Burning Ears #63: We can get it on the next room forward before the Pavlov.


Burning Ears #64: At the top floor where you are.

Scanner #35 - Mutant - Nurse: Progress until you get to the bottom floor where you will find one of these enemy variant, along the way would end up being where you get the chirper so this should provide a hint to where you should go.

Burning Ears #65: Inside the restroom.

Burning Ears #66: Exit out the bottom floor and move to the blue room.

Burning Ears #67: After your Plyusch boss fight and unlocking the door, proceed to the next room on the bed is the chirper.

Necromancer #48: Same room on the corner area.

Burning Ears #68: As you take the elevator down, go right and grab the chirper.

Necromancer #49: After fighting off mutants, you will end up moving to the next area where the corpse is on the stairs before the door.

Burning Ears #69: By what appears to be a dining hall where the chirper is on the table.

Necromancer #50: Move to the next area where there is a statue and her corpse will be awaiting, this is where the last is.

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The Necromancer
Talk to every dead
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Achievement #35: Hopefully you did not miss any corpses because this is also where you will find corpses to interact with unless you leave the others in Open World if your progressing through the story. Well I guess the additional 3 could might as well be part of the Necromancer via animals.

Burning Ears #70: Same room, go up the stairs and find it on the brown seat.

Burning Ears #71: Find the room with polymer experiments so this would be your last chirper on this mission level, proceed as always.

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Freedom Reflex
Explore Pavlov
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Achievement #36: This unlocks after completing Pavlov.

1) NG - Lighthouse, Chelomey - Revisit, NG+
2) Burning Ears: 72/72
3) Scanners: 38/38
4) Achievements: 42/51
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Scanner #36 - Dewdrop: This organic boss is a one-time encounter, scan before killing it.

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Dew Point
Kill Dewdrop
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Achievement #37: Immediately after landing on the beach where the whale lays dead, Dewdrop will appear. It is easy to dodge the lasers and the metal legs are predictable too, killing him with your strongest arsenal of weapons (you still have plentiful after the looting of Open World anyways) so then you will unlock this achievement after.

Burning Ears #72: Get to the top of the lighthouse, before proceeding down and sitting on the chair you need to grab the last chirper for the Burning Ears achievement.

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Burning Ears
Find all Chirpers
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Achievement #38: That should be all of the chirpers, if you wrote down your numbers on the notepad this should not be a problem.

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Kommunism 2.0
Find out the AoC's secret
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Achievement #39: Under lighthouse. You will unlock this when you have explored the underwater complex with Fila but anyways spoiler: she dies by you everything else after this is just mopping up related story achievements and other miscellaneous etc.


Scanner #37-38 - Twins (Left & Right): Scanning each individually and after Right will unlock the Scanner achievement which I got earlier but that was a weird bug.

Now if you scan all enemies you will get an achievement related to Scanning.

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Murderous Beauty
Kill Twins
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Achievement #40: Last boss fight only when you select the second option, not sure if choosing the first option will grant you the Atomic Heart achievement but try if you want. You will go back to the place where the Twins are in.
https://www.youtube.com/watch?v=weDwxvh84GA

• [0:25] Left
  
• [8:42] Left & Right

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Atomic Heart
Complete the game in Hardcore mode
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Achievement #41: Only in Armageddon can you get this achievement. After the Twins boss fight this achievement will unlock.

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The Motherland Does Not Forget its Heroes
Unlock all achievements
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Achievement #42: Self-explanatory after 50 achievements all obtained.


Further collectable and miscellaneous can be found under the sections but you already have took a reading on them at this point, so just choose to go back to Facility 3826 at the main menu and collect what you miss. Otherwise you got all the achievements needed in one playthrough on Atomic Heart. Lastly, starting on NG+ would be what you needed if you forgot to use this guide but that is fine the DLC later will be a separate part of the game.

1) Complete the Annihilation Instinct DLC
2) Weapons: 2/2
3) Blueprints: 6/6
4) Achievements: 51/51
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In this section, we will begin the first DLC walkthrough, Annihilation Instinct. To access this DLC, go to New Game - Annihilation Instinct: Play, you're basically all set for this one. This time we won't need to play in the highest difficulty, after this expect more DLCs to come.

https://steamproxy.net/steamstore/app/2214821/Atomic_Heart__Annihilation_Instinct/

Special Item - Alionka: We need this for the achievement we will be doing later, this is essential for us to use if we can upgrade.

Weapon #1 - Klusha: This new melee weapon can be found on the impaled robot next to the corpse but you will progress through the story to get this. We can use this weapon to get John Silver's Crew Achievement.

Using our Alionka will still count here, the Red October Achievement tracker adds up after a good seconds of the Alionka ability used and robots exploded.

We will find chests scattered but like corpses we can't loot them so we must progress through the story.

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Weird Science
Get into the ORB lab
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Achievement #43: Story Related. This should unlock as you step inside the lab via elevator entrance.

We can explore around here, there is a save station also.

Glove - Technostasis: This is unmissable of course so we can be able to loot as well.

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Time in a Bottle
Kill 3 enemies while using technostasis
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Achievement #44: Technostasis is your new glove ability to literally slow down time, pretty cool yeah? This is easy to pull off.

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John Silver's Crew
Kill 3 M4D-5 robots in a row while they're hopping on one foot
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Achievement #45: Using your Klushka you hit them at their leg any right or left make sure to kill them after you destroy one of their legs. You can make this easier with your technostasis.

BEA-D (Red): Unmissable.

Weapon #2/Blueprint #1 - Secateur: This new ranged weapon can be found on the lab story related though, you unlock a blueprint for this also.

BEA-D #1: We find our first BEA-D inside the greenhouse, we get a PM blueprint for it.

BEA-D #2: Just as you exit and backtrack you will find few Dummy Xs and BEA Ds so will you find the chute which a BEA D ball dropped would give us KS-23 blueprint.

Blueprint #2 - Klusha - Handle: As you open chest you will be able to find this.

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Divide et Impera
Separate several combined BEA-Ds with one shot from the Secateur
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Achievement #46: They can merge and turn into a gigantic enemy to deal with, your Secateur being a ranged weapon can deal with this just for this achievement. We get this under the place where you get a taste of their merge, use the right click to separate them which uses energy.

BEA-D #3: They're coloured green, we grab them after the fight of robots. We get our Zvezdochka blueprint.

You can also freely disassemble the weapons that was sent to your storage because our two weapons are solid in Peaceful Atom (easy). Start upgrading if you haven't done so.

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Ultimate Storm
Destroy 15 enemies using the Alionka neuropolymeric launch module
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Achievement #47: We are going to be in two hall directions where we fight robots even against our old enemies, we have found our second Alionka (forgot to mention the Alionka can heal) so we use it and basically for a few seconds we get the achievement unlocked. As of 2023/11/02, Red October name has changed to Ultimate Storm.

BEA-D #4: After this boss fight which is Left and Right Arm also, it will drop our next BEA-D which is coloured black. Starting from here, no blueprints.

Blueprint #3 - Secateur - Energy Supercharger: As you progress you will find two directions, one leads you where you will find another blueprint located inside your next saferoom just before the next puzzle.

Blueprint #4 - Secateur - Magazine: On the right side at before the next BEA-D is a saferoom, get in there to grab the next blueprint via inside of chest.

Blueprint #5 - Klusha - Blade: You will find it on the next room at the corner where BEA-D will run around as well as robots your old enemies of course.

Blueprint #6 - Electricity Coil Supercharger: This should be the last one, found inside the thingy where you contain the BEA-Ds (let me know if this needs changed).

BEA-D #5: Inside the room to contain BEA-Ds, this one is coloured white.

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Maximum Strength
Upgrade the Klusha and Secateur to max
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Achievement #48: All resources even starting anew are not too much to loot, just find all chests and everything else otherwise kill robots.

BEA-D #6: Next area, this one is coloured light blue.

BEA-D #7: This is outside of the elevator and also near the Strekoza, this one is coloured red.

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Lord of the Flies
Use a Strekoza for the first time
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Achievement #49: This one is straightforward but in case if you don't we use the transport vehicle to go from one area to another, this is what we use to progress the story, don't worry we can find only one outside the elevator while we got our BEA-D.

BEA-D #8: Last one by the arena where robots come to try killing you, this one is coloured red.

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A Girl's Best Friend
Send all BEA-Ds to NORA's brain
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Achievement #50: This one is after finding all BEA-Ds well 8 of them. We will go back to the Teardrop once we progress a little further.

Solving the puzzles should prove not difficult you got a schematic to follow.

Next up is the boss while you try to complete the puzzle, not too bad but still requires attention to beat.

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Return to Utopia
Complete the Annihilation Instinct DLC
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Achievement #51: Story Related. This should appear after the final boss where a cutscene will play out.

Vavilov: (19)

Hawk - Forester: (7)

Open World: (2)

Vavilov (20 Scans)
Scanner 1 - VOV-A6 Lab Tech
Scanner 2 - VOV-A6/CH Lab Tech
Scanner 3 - Dandelion Security CCTV Camera
Scanner 4 - WSP-9 Pchela
Scanner 5 - GMC-69/P Vatrushka
Scanner 6 - WSP-9 Laser Pchela
Scanner 7 - LUC-1 Owl
Scanner 8 - GMC-69/O Vatrushka (Yellow)
Scanner 9 - GMC-69/L Vatrushka
Scanner 10 - Lab Tech
Scanner 11 - Mutant
Scanner 12 - Poison Mutant
Scanner 13 - RAF-9 Engineer
Scanner 14 - LUC-1 Laser Owl
Scanner 15 - Mother
Scanner 16 - Sprout
Scanner 17 - Poison Sprout
Scanner 18 - Fire Mutant
Scanner 19 - Large Mutant
Scanner 20 - Fire Sprout


Hawk - Forester (3 Scans)
Scanner 21 - WSP-9 Patrol Pchela
Scanner 22 - MFU-68 Laborer
Scanner 23 - MFU-68/CP Duck


Open World (8 Scans)
Scanner 24 - VOV-A6 Lab Tech Series
Scanner 25 - Large Poison Mutant
Scanner 26 - Plyusch
Scanner 27 - LUC-1 Rocket Owl
Scanner 28 - ARU-31/8 Rotorobot
Scanner 29 - ARU-31/6 Rotorobot
Scanner 30 - MED-6 Doc
Scanner 31 - HOG-7 Hedgie


Theater (3 Scans)
Scanner 32 - MA-9 Belyash
Scanner 33 - Large Fire Mutant
Scanner 34 - NA-T256 Natasha


Pavlov (1 Scan)
Scanner 35 - Mutant - Nurse


Lighthouse (1 Scan)
Scanner 36 - Dewdrop


Chelomey - Revisit: (2 Scans)
Scanner 37 - Twins (Left)
Scanner 38 - Twins (Right)

NOTE: These wallpapers that are linked Source are not the accurate representation on the final game, but the images are nice looking. Also, this section will be revamped.

Vavilov[wallpapercave.com]

Source[wallpapercave.com]

Open World[wallpapercave.com]

VDNH:[wall.alphacoders.com]

Theater[wall.alphacoders.com]

Source[www.hdwallsource.com]

Source[www.hdwallsource.com]

Source[wallpapercave.com]

Guess this is the end of the journey, however I happen to find 72 chirpers yet the tracker says 73 (considering the Chemist number is 6 not 8 I doubt this is correct).

The game is very mid, janky combat but with less variety of weapons, robots etc compared to the old Atomic Heart of 2017 which should of stayed in game. Writing this guide made me exhausted plus leaving those hours accumulated due to not exiting the game out so in reality I'd be done in 20-30 hours.

All achievements are straightforward at least and that is good, though I worked most on this game so I will need to earn the 100% and move on.

If you like the style of my guide writing, feel free to like and share this.


Source Art[www.artstation.com]

100% finished, keep it up people and good luck :)

If you want to consider donating, I have the link here so you can send your money. Otherwise if not then that is fine, continue using this guide at your own benefit I won't ask too much.
https://www.buymeacoffee.com/Diviision