The structure of the guide is organised in legs tailored to different areas of the game and progression, and timeless sections which can be done at any time in a particular area.
Bold quests will fail if you ignore or leave them once started or nearby.
Underlined quests are unmarked so you will have to look them up in order to know where and what they are as the names will never show up in your journal.

To follow the guide is to follow the procedure outlined in the legs very closely.
Most of the sequences in the legs are very necessary, in ways that are hard to predict,
Some paths are just as valuable as others so you will have a few choices outlined in the legs.

Make sure to be mindful of the Timeless section quests as you can miss/fail them by walking past or being careless. Certain quests can be played in different ways that can lead to missing content (other quests or loot) so consult the guide on the best method.

Ideally, by the end of the playthrough:

• No failed quest objectives
  (WIP: comment any objectives you fail to improve the guide, check wiki for these too)
  
• No failed quests
  
• No missed quests (4 exceptions detailed below)
  
• No missed places of power
  
• No missed items tied to quest areas (or item codes provided)
  
• All Gwent cards available
  
• All paintings and trophies for your estate (except prison poster depending on choice)
  
• Seen all romance scenes and have done It Takes Three to Tango
  
• Cerys is queen of Skellige
  (Alternative to support Hjalmar is not possible without forfeiting a place of power)
  
• All defenders at Kaer Morhen
  OR Keira dies and have done A Final Kindness
  
• Dikjstra or Emhyr rules
  OR Radovid wins, and you cannot do Reasons Of State (and miss the achievement for that playthrough)
  
• Ciri is alive, a witcher, and stays at your estate
  OR Ciri is emperor, visits your estate, and have done Faithful Friend
  
• Olgierd is saved (O'Dimm ending item codes provided)
  
• Anna lives Syanna lives, Detlaff dies, Regis flees Tossaint
  OR Anna lives, Syanna dies, Detlaff lives, Regis stays in Tossaint, and have done The Perks of Being a Jailbird

The quest What Lies Unseen is totally missed because it occurs only as a bad result to other quests and results in a net loss in total quests count (Unseen Elder path)

The following quests each give an increase in total quests but are reasonable to not want to do for story reasons, so are always given as options in the guide:

• A Final Kindness (if Keira dies)
  
• Reasons Of State (if Dijkstra is not shoved - required for the next one)
  
• Faithful Friend (if Ciri becomes empress)
  
• The Perks of Being a Jailbird (if Syanna dies)

Throughout a playthrough are event quests (called Unmarked Quests by the wikis) which don't count as quests in the journal but nonetheless can be missed, so, whenever you enter an area interact with every questgiver you encounter and complete the interaction there and then, but do not straight away do every quest you take from the bounty boards as you can potentially miss quests that trigger in other areas
(namely progressing Following the Thread means you will miss Flesh For Sale, and The Four Faces of Hemdall has more options if done prior)

If you want to play nice like in TW2, try not to kill any trolls you can talk to along the way as there will be plenty of rabid trolls to kill which have the same loot.
Also try not to draw your sword in human encounters, sometimes you can just knock them out with fists.

This game is broken: It's important to note that there are a few major glitches that can happen in your save that can permanently screw up getting 100% completion in any of these categories such as:
- map markers not updating properly
- quest flags being modified post-completion
(sometimes resulting in quests failing after being completed)

You need to be prepared to handle these quirks of the game.
The most troublesome things for me seem to be bandit camps, abandoned sites, and hidden treasures as a few of them seem to stick around long after they have been cleared in completely inconsistent ways.
The best method may be to place saves and do POI methodically at the earliest stage so if there are issues you can always go back and try again (but won't be going back too far).
Sometimes what you're missing is a single loot container (even for things like monster dens or bandit camps).
Also do not use the console command to reveal all POI because that tends to spur on these issues.

Legs are the 'Walkthrough' section of the guide, and the guide's main purpose.
Follow the legs very closely, things contained within the legs must be done in a certain order.
Refer to Timeless and Objectives every now and then.

Before doing a quest of your own volition check to make sure it's mentioned in the timeless or safe section, or otherwise not mentioned further in the legs. As there may be times where you can do a quest but it would be hard to tell you explicitly not to do them at all those possible points.

NOTE: Any witcher upgrade diagrams you find may break the related quests.
Scavenger Hunt: Gear Upgrade Diagrams quests are missable if you find related diagrams without using the maps to start the quest first of (if you don't follow quest objectives strictly).
There is no natural way to align getting the diagrams in the right order with following the legs so try to do them in order after you've done enough of the legs to make that feasible. (so take note of where the scavenger diagrams are in order to avoid them until you have the quests proper, take the earliest opportunity to buy the scavenger maps)

Before doing anything make sure to simulate a Witcher 2 save for a new game if you want to talk to Voorhis to get access to Ghosts of The Past

If you have already started your game and have not yet completed Imperial Audience:
You can use commands so you didn't need to have had the talk
addfact(import_letho_alive)
addfact(import_geralt_rescued_triss)

Pick up the Crystal Skull in front of you when the game begins after killing the ghouls

During The Beast of White Orchard
Before talking to Vessemir after obtaining the buckthorn and investigating the griffin's nest:

You don't need to have done:

• A Frying Pan, Spick and Span
  
• Contract: Devil by the Well
  
• Dirty Funds
  
• Deserter Gold
  
• Temerian Valuables
  
• Scavenger Hunt: Viper School Gear

You do need to have done:

• Missing in Action
  
• On Death's Bed
  
• Precious Cargo
  
• Twisted Firestarter

Then make sure to play gwent with the Oxenfurt scholar before talking to O'Dimm

Go to Vizima
If you started the game using simulate witcher 2 save:
Say to Voorhis that Letho is alive.
Say you went with roche and that you went to rescue triss for extra content.
Also Sile de Tansarville will appear later in the story briefly if you do not say she died.

Drop the towel from your inventory before choosing clothing, you can then pick it up once you've chosen clothing to keep the towel.

You can enable this fact for small bit of extra content in Oxenfurt:
addfact(import_geralt_drank_mysterious_potion)

Go to Velen

Don't do Last Rites until you get the magic lamp
Don't do The Whispering Hillock

Do At the Mercy of Strangers

Do The Nilfgaardian Connection

Do Lynch Mob

Do Hunting a Witch
Do Wandering in the Dark
Make sure to do Magic Lamp at the end of Wandering in the Dark
Do An invitation from Keira Metz
This unlocks some content in Last Rites

This would be a good time to go exploring points of interest with the eye & magic lamp

Go to the Novigrad border post to get the quests

• Thou Shalt Not Pass
  
• Fake Papers
  - Talk to the guard for information on where to get a pass (axii gives xp)
  - Axii the guy who offers you the pass, leave the conversation without taking the pass
  - Offer to help his brother-in-law for the pass

Do Bitter Harvest
Don't let the brother-in-law die
Finish Fake Papers and Thou Shalt Not Pass

Do Hazardous Goods (Part 1)

Go to Crow's Perch, complete the quest Ciri's Room
Make sure to play gwent with the Baron now, ask him about the Child's Doll
And do the rest of Gwent: Velen Players

Do part of Family Matters
- Return to baron after information gained from the botchling, go to Oxenfurt to give the doll to Tamara and return to the baron, do not try to find Anna yet.

Do part of Ladies of the Wood
- Go as far as the point at which you have given back Johnny's voice, do not progress the quest any further (don't follow Johnny to the orphanage)

Do A Towerful of Mice
Do part of A Favor for a friend
- Return the package to Keira but do not 'wait' (the orange dialogue), instead leave the dialogue for now.
Don't finish this quest to start For the Advancement of Learning yet.

The quest Forefather's Eve is now available.

Do these quests:

• The Fall of House Reardon
  
• Ghosts of the Past

Convince Letho to go to Kaer Morhen

It is advisable you now do all the side quests and POI in Velen that you may not have encountered yet. Remember that Velen is everything south of the Pontar.
(Don't progress any quests that were mentioned not to progress here)

Go to Novigrad

Don't start Following the Thread
(You may take it from the bounty board but do not progress it)
Do Karmic Justice before triggering Racists of Novigrad

During Pyres of Novigrad
Search Triss' house for The Rose of Rememberance

Do Suspicious Shakedown

During Novigrad Dreaming
Let the Godling stay if you want to do the quest Haunted House
Not doing so will have Sara will meet up with Johnny later but you won't get the extra quest.

During Broken Flowers
Ask Zoltan about each woman
Accept var Attre's offer for fencing lessons

Originally posted by Ubeogesh:

[...] Make sure to beat Rosa var Attre in both encounters. Otherwise Fencing Lessons quest won't be available.

[...] Only if you beat her twice, it triggers an extra conversation at the very end that makes Fencing Lessons available.

Do A Feast for Crows

During Get Junior
Start The Gangs of Novigrad
Talk to Cleaver's guards outside the arena and casino
Finish The Gangs of Novigrad
Meet Roche's Contact
Do not talk to Junior's guards outside the hideout, instead jump over the barrels and tarp to get inside.

Do A Favor for Radovid

Do Gwent: Big City Players
Do part of Redania's Most Wanted
- Get the crystal, kill the witch hunters, do not continue this quest until later

Do A Walk on the Waterfront (Near the water wheel to the east of Novigrad Docks)
During Count Reuven's Treasure
- You must let Triss be tortured and ask for the location of the treasure from Menge.

Don't do A Matter of Life and Death

Do The Play's the Thing

During A Poet Under Pressure
- Ask Dijkstra for help in his bathhouse
- Play gwent with Priscilla before starting the ambush

- Get the painting of Heirarch Hemmelfart from the halflings

Note: A few lines of dialogue will change in the Hearts of Stone DLC after completing the main game's final quest. If you intend to start this DLC early, now would be a good time to do it.

Don't do Blood and Wine yet (if you do, you will get Dandelion in your estate instead of Ciri)

During An Eye for an Eye keep Ves alive
Do Haunted House (if available)
Do Fencing Lessons
Do Cabaret
Do Carnal Sins
During A Dangerous Game find the solider statuette
Do The Solider Statuette
Do The Nobleman Statuette
Do Witch Hunter Raids

It is advisable you now do all the side quests and POI in novigrad that you may not have encountered yet. Remember that Novigrad is everything north of the Pontar.
(Except do not do Following the Thread or A Matter of Life and Death)

Go to Skellige

During The King is Dead - Long Live The King
Dress up as yen asked
Do not try to go to the armourer until after the quest
(OPTIONAL) Race Cerys and win/lose (Has story implications but doesn't affect quests)
Make sure to have a fistfight with Madman Lugos (critical to future quests)
[romance] When teleporting out of Ermion's lab, think "I just want to kiss you"

Don't do Missing Persons

Do the quests:

1. Contract: The Phantom of Eldberg
   Achievement now cannot be missed by progessing!
   
   Geralt: The Professional

   Complete all witcher contracts.
2. Stranger in a Strange Land, use Simun Brambling's help to escape.
   
3. The Cave of Dreams
   
4. An Unpaid Debt

Do Gwent: Skellige Players
Play gwent with Madman Lugos

Do Flesh for Sale

It is advised to do Hard Times at this point.
Do Posession and The Lord of Undvik
During The Lord of Undvik:
- Talk to Harald Houndsnout inside the ship. He asks you to bring him twine and nails:

1. Collect the nails from some planks on the floor in front of the sawmill (last building you see before entering the cave with Hjalmar).
   
2. Collect twain (you should already have it in your inventory as it's a common crafting material).
   
3. Don't go inside the cave yet. Instead return to Harald Houndsnout in the ship and give him the items.

Now is a good time to do all the side quests and POI and make a save, the next legs will involve critical choices. (A good quest to do here would be The Four Faces of Hemdall)

Do King's Gambit
Defeat a Vildkaarl in a fistfight before speaking to Crach
Choose to go with Cerys and use the Place of Power in the cellar cave
Do Coronation

Do Missing Persons and Nameless
Do The Calm Before the Storm
Do A Mysterious Passenger

During The Last Wish
[romance] tell Yennefer you still love her

Do part of Redania's Most Wanted
- Ask Yennefer about the crystal, but don't give it to her

Go to Velen

During The Whispering Hillock

Originally posted by SF:

[...] If you talk to the Ealderman of Downwarren after having spoken to the tree spirit you can get more information on the townsfolk's perspective of the ladies and the spirit.

- Finish any interactions you have in Downwarren (play gwent with the merchant, finish trading, looting etc)
- Release the tree spirit


Finish Ladies of the Wood
- It should (due to doing The Whispering Hillock at the right time) end up saving both the Baron and the orphaned children, however Downwarren will get destroyed (Resulting in extra loot, so visit Downwarren some time after)

Finish Family Matters
Do Return to Crookback Bog

Go to Novigrad

Finish Redania's Most Wanted

1. Do not ask Triss about the crystal, avoid the objective
   
2. Give the crystal to Radovid

Do Following The Thread
- Before you get to Hammond you can talk to Crach An Craite for extra dialogue and possibly a reward (a quick visit to Skellige)
- Make sure to pick up the Nekker gwent card dropped by Hammond after killing him

Do Gwent: Old Pals
- You can find Lambert inside the Nowhere Inn or later in Kaer Morhen.

During A Matter of Life And Death
Make sure to play the Gwent tournament
[romance] Kiss Triss

Make sure to save Moritz at the pyre at the Glory Gate in Novigrad
(Beware this is known to be bugged so just kill the guards and witch hunters and it will work anyways)

During Now or Never
- Tell Triss to stay in Novigrad
- [romance] Tell Triss "I love you"
- The sword "Gwestog" may be dropped by one of the witch hunters (make sure to loot them)

Do Novigrad, Closed City II (walk along the street towards Hierarch Square)

During Novigrad, Closed City I (in the middle of St.Gregory's Bridge)
- Visit the spot near "Crippled Kate's" before going to the house north-west of the "Southern Gate" to avoid walking the same way twice

Do A Deadly Plot
Play Gwent with Thaler (Do Gwent: Playing Thaler)
Achievement now cannot be missed by progressing!

Go to Kaer Morhen

Do a part of Ugly Baby (up to and including To Bait a Forktail...)
Get Triss' Earring from near the broken bed
Do Berengar's Blade
Finish Ugly Baby

Do Va Fail, Elaine

Finish A Favor for a Friend
During For the Advancement of Learning
- [romance] go along with Keira's insinuations (This does not affect any other relationship)
- Make sure to convince Keira to go to Kaer Morhen instead of parlaying with Radovid OR allow Keira to parlay with Radovid, you will not get every defender at Kaer Morhen, but it will lead to an extra quest down the line (A Final Kindness)

Do all the remaining Brothers In Arms quests
If you convinced Keira to go to Kaer Morhen:

Do The Isle of Mists

Do The Battle of Kaer Morhen


During Blood on the Battlefield
- Have a snowball fight with Ciri
- Go with her to Velen, not the emperor, if you want the witcher ending OR go to the emperor first, if you want the empress ending

During Bald Mountain
- Take the Magic acorn from Imlerith's corpse (you may eat it to get 2 skill points)

During Final Preparations (can mostly be done in any order)

1. Talk to Ciri and do Payback
   
2. Talk to Yennefer and do The Great Escape
   
3. Talk to Triss and do Blindingly Obvious
   For an extra quest, or if you want the Ciri Empress ending:
   - Bribe Dijkstra with information about the Nilfgaardian Emperor to get the Reasons of State achievement
   Otherwise, only if you want Radovid to win the war:
   - Shove Dijkstra aside (break his leg), this will prevent Reasons of State from starting
   
4. If you chose to let Keira parlay with Radovid: Talk to Triss and do A Final Kindness
   
5. Meet Ciri at the Chameleon and tell her to go by herself into the room with Phillipa (event spawned after finishing Ciri's, Yennefer's, and Triss' quests)
   
6. Finally, talk to Avallac'h and do Through Time and Space
   - Make sure to use the Place of Power in the second world

If you didn't shove Dijkstra aside during Blindingly Obvious:
During Reasons of State
- Unequip your swords and your crossbow before going on the ship to keep them during the upcoming fight
- If you intend to get the Ciri Empress ending you must side with Roche, otherwise side with whoever you want.

During Battle Preparations

1. Do The Sunstone (use the place of power and collect the hidden treasure in the ancient crypt)
   
2. Do Veni Vidi Vigo
   
3. During Child of the Elder Blood
   - Tell Ciri: "Go for it."
   - Tell Ciri: "Yeah. I'll go with you."
   
4. Do Skjall's Grave

During On Thin Ice
- Before starting the battle, you can find Ciri practicing her magic by following the path into the hills that starts next to where the Quartermaster is based

Do Tedd Deireadh, The Final Age

FINISH THE GAME

If you got the Ciri Witcher ending:
During Something Ends, Something Begins
- Make sure to interact with the dwarves on the way between objectives

If you got the Ciri Empress ending:
Do Faithful Friend
Do Something Ends, Something Begins

Move on to Hearts of Stone if not done already, then Blood and Wine

You may want to talk to Triss, Yen, and Ciri about Gaunter's mark on your face for special dialogue
(Before finishing Battle Preparations in the main game legs)

Do Evil's Soft First Touches

During Open Sesame!

1. Speak to every person at the auction,
   
2. Guess the correct Van Rogh (Portrait of a Merchant) for Yaromir. This unlocks the quest Avid Collector.
   
3. Purchase the viper witcher diagrams,
   
4. Do not lose in gwent or you'll miss a card.
   
5. Buy every auction item.
   
   Shopaholic

   Buy all the items put on the block at the Borsodis' Auction House.
6. Make sure to 'Dismantle' Count Romilly's Figurine. This unlocks the quest A Dark Legacy.
   
7. During Open Sesame: Breaking and Entering
   - Go to Hugo's house first

If you're planning to lose the gwent match during Dead Man's Party, spend your money on the Runewright (or something else) as you'll forfeit 5% of your gold.

During Dead Man's Party

When Vlodimir removes Geralt's facial hair, it will disable dynamic beard growth even though the end result is a clean shaven face. You can re-enable it by visiting a barber and selecting the "Shaved head and a ponytail" option.

• Find the Cow gwent card in the upper portion of the barn
  
• Do every event at the wedding before confronting O'Dimm
  
  • Lose the gwent match (choose to do this first or last depending on what dialogue variations you want)
    
  • Herd the pigs without using Axii
  Let the Good Times Roll!

  Participate in all the activities at the wedding

If you want to give yourself the letter Vlodimir writes (it's unobtainable by normal means)
additem(q602_letter_from_witold)

During A Midnight Clear
- Choose a Rowan branch (near the barn's ladder)
- [romance] Sail out with Shani (This does not affect any other relationship)

Play Gwent with Olgierd.

During Scenes From a Marriage
- Achievement can only be done up to this point!
- Achievement can only be done up to this point!

You may want to start Blood and Wine now for some special dialogue with Regis regarding the mark a little bit into the DLC. (But don't complete the DLC until you've completed the main game story)

During Whatsoever a Man Soweth

1. Talk to Shani
   
2. Do the Oxenfurt Academy optional objectives
   
3. Return to Shani and play Gwent
   
4. Go to the temple of Lilvani
   
5. Challenge O'Dimm

- In the mirror world:

1. Go straight and up the path through an overpass/archway of trees
   
2. Get the venomous sword from the red pedestal
   
3. Continue right, go around the mansion into a cave, quickly loot it
   
4. Go back into the mansion, go straight through and around, don't interact with any mirrors
   
5. Break the wall near the fountain using aard, interact with the fountain

Move on to Blood and Wine if you have completed the main game story.

During Envoys, Wineboys
Achievement can only be done up to this point!

During The Beast of Toussaint
- Spare the Shaelmaar
- During the party, find the lost ring and give it to the crying woman on the bridge
- After the attack go back to the greenhouse and loot Milton's corpse

Do Warble of a Smitten Knight
- Enter the Knight's tournament as "Geralt of Rivia" (not the other name), and agree to the duel with Anseis
- Finish the tourney (flawlessly)

Start Turn and Face the Strange by going to the center of Beauclair and give the delivery boy a tip

During La Cage Au Fou
- Search the whole wight's lair and lift the curse (eat without spoons)

Don't do Where Children Toil, Toys Waste Away yet

During No Place Like Home
- Help Marlena. This unlocks the quest The Hunger Game where she will give you a trophy you can display in your estate

There are 3 more trophies you can get for:
- Winning all the fistfights (including Raging Wolf)
- Beating the Skellige Gwent Championship
- Returning the balls in Goodness Gracious Great Balls of Granite to the art curator

Do There Can Be Only One

Do Amidst the Mill's Grist
Do Where Children Toil, Toys Waste Away
Do Capture The Castle
During Night of the Long Fangs:
- Go to Orianna
- Complete Blood Simple
Don't call regis just yet

OPTIONAL Follow subsection "Unseen Elder's Lair" if you want to use the Debug Console Extensions to collect all the gear there. (In the Miscellaneous part of this guide)

Talk to Regis and change your mind, go after Syanna

During Beyond Hill and Dale...

• Go to the end of the rainbow
  
• Follow the Will O' The Wisp to the left of the Longlocks tower and loot the corpse and nearby sword
  
• Go to the 3 Bears' Cave
  
• Accept and complete the quest from the notice board Duck Duck Goosed
  
• Aquire the ribbon from the flint girl (gwent or purchase it) ->
  Last Action Hero
  OR don't get the ribbon in order to get the bad ending (but extra quest) ->
  King of the Klink
  (Make a save here if you'd like to do both endings for both achievements)
  
• [romance] After reaching the giant's island kill the giant and let Syanna have her way with you (This does not affect any other relationship)
  
• Follow the Will O' The Wisp down a path around the bridge, take the sword from the campfire

Do Tesham Mutna
Don't fight Detlaff if you didn't save Syanna and you want Regis to stay in Toussaint.

During Pomp and Strange Circumstance or Burlap is the New Stripe:
- If you didn't save Syanna

• Exit your cell and find the prison note
  
• Do The Perks of Being a Jailbird
  
  Kling of the Clink

  Serve time in Toussaint.

- Go to the bootblack w/ regis
- If you saved Syanna

• Speak to Syanna, be sympathetic
  
• Speak to Damien, don't tell him about the note
  
• Attend the ceremony, tell Anna about the note
  
• Say positive things about Syanna
  Last Action Hero

  Be decorated with the Order of Vitis Vinifera.

- Put on the mandrake collecting items

During Be It Ever So Humble...
Say to Ciri "So Stay"
(It will be either Yen or Triss if you romanced exactly one of them)
(If you did B&W early, it will be Dandelion instead)

If you didn't go to the Unseen Elder's lair yet,
you can go and get the steel sword and boots at any time.
(but the rest of the set you now have to spawn in)

Quests shown here will either be failable or missable if you ignore them or walk away or simply contain significant content that you can miss by taking a certain path.
No quests completed in any legs will be here. All of these quests can be completed even after completing the main story of the game or DLCs.

Missable Content:

• Contract: Devil by The Well
  - Talk to the herbalist about Claer

• A Dog's Life
  
• Caravan Attack
  
• Death by Fire
  
• Harassing a Troll
  
• Highway Robbery
  
• Looters II (Codgers' Quarry)
  
• Man's Best Friend
  
• Where the Cat and Wolf Play...:
  Spare Gaetan in order to do Take What You Want

Missable content:

• At the Mercy of Strangers
  - If allowed to live, John Verdun can be found later, northwest of the Border Post on Grassy Knoll
  
• Last Rites
  - Can use Magic Lamp during this quest only if you have already got it.
  
• Hazardous Goods (Part 2)

A map of all quests in this section:

• A Walk on the Waterfront (Novigrad Docks)
  
• Hey, You Wanna Look at my Stuff?
  - if you rat him out to the witch hunters it will not appear in your log
  
• Karmic Justice
  - Do this BEFORE Racists of Novigrad
  
• Never Trust Children (Novigrad)
  - Required to do Hidden Messages of the Nilfgaardian Kind
  
• Racists of Novigrad
  
• Strumpet in Distress
  
• The Most Truest of Basilisks
  
• Warehouse of Woe (Harborside)
  
• A Barnful of Trouble (Near Novigrad)
  
• Gwent: High Stakes
  - act favourably to Sasha for a romance scene.
  
  Gwent Master

  Defeat Tybalt and win the gwent tournament held at the Passiflora.

Missable Content:

• Rough Neighborhood
  - Ask to walk her home during the first event, which then prompts her to help you fight the bandits outside her home in the second event.
  -These events can only be triggered after finishing the contract The Oxenfurt Drunk
  
• The Price of Passage
  - Pay them in the first encounter, then don't pay during the second encounter, then you can find them again for a total of 3 encounters, other combinations will yield 2 encounters at most.
  -These events can only be triggered after finishing the contract The Oxenfurt Drunk (or more specifically, after getting drunk during this contract)
  
• A Warm Welcome
  - Look for the loot the man tells you to find in Dragonslayer's Grotto if you haven't been there already.

A map of all quests in this section:

• Crime and Punishment (Near Rogne)
  
• Brave Fools Die Young
  - Drop all of your Celandine (yellow herb) just before talking to them, to add some objectives to this quest
  
• Finders Keepers (Near Giants' Toes)
  
• Never Trust Children (Skellige)
  
• Siren's Call (Near Sund)
  
• The Four Faces of Hemdall
  - Do before Following the Thread for more options
  
• Woe is Me
  - Must be approached from the west (going east)
  
• Free Spirit (Small island north-east of Kaer Trolde)
  - Don't hand over all 5 books at once. Instead transfer them one by one.

Missable Content:

• Call of the Wild
  - At night there will be a werewolf
  
• For Fame and Glory (Near Larvik)
  - Keep them alive
  
• Iron Maiden
  - Defeat her challenge for romance scene.
  
• The Price of Honor
  - Magic lamp used in quest
  
• The Sad Tale of the Grossbart Brothers
  -Pick up the quest from Djenge in Blandare before killing the bros (in the cave at Grotto signpost), otherwise it will not show up as a quest in the log
  
• Hard Times
  - This quest is known to be buggy

A map of all quests in this section:

Missable Content:

• The Bastion
  - Requires Magic Lamp (will be satisfied by following the guide correctly)

Missable Content:

• Rose on a Red Field
  - Bugfix: If you leave Bowdon before investigating the odor, go to the piles of hay south of Bowdon and find Kluivert's body.
  
• The Taxman Cometh (go to Oxenfurt's markets when you have at least 35,000 crowns)
  - If you answer no to two or more of the questions, you will get a diploma

• Extreme Cosplay

Missable Content:

• A Knight's Tales
  - Examine everything before touching the bear hide.
  
• Wine Wars
  
  The Grapes of Wrath Stomped

  Help unite the warring vineyards and have a wine named in your honor.[witcher.fandom.com]
  -To make Wine Wars: Consorting appear, keep at least one objective incomplete for each of Wine Wars: Coronata and Wine Wars: Vermentino until after you have turned in Wine Wars: The Deus in the Machina (this will automatically complete both quests, create the new quest, and transfer each of their rewards to the new quest. See the achievement guide in the link)
  
• Equine Phantoms
  - This unmarked quest is located here[i.imgur.com]

For every quest where relevant, lists the Failable Objectives.

In the very unfortunate cases, a damned objective will ALWAYS fail if you choose to complete that quest, there is no sequence of choices or actions that will allow you to complete or avoid that objective.

Consult the wikis for every quest where you are having issues, there is more breadth and depth in the information provided there regarding objectives.

• The Beast of White Orchard
  
  • "Examine the site of the Nilfgaardian soldier's death using your Witcher Senses."

• Wild at Heart
  Will fail (temporarily) if you accept the bribe and do not continue searching
  • "Search for signs of Hanna in the woods using your Witcher Senses."
  Will fail if you accept the bribe and wait for nightfall at the lair
  • "Tell Niellen Hanna is dead."
• Ciri's Story: The King of the Wolves
  • "Aquire wolf's liver"
    
  • "Aquire dog tallow."
    
  • "Aquire fool's parsley."
    
  • "Aquire mistletoe."
• Family Matters
  • "Save the stable hand and the horses trapped in the burning stable"
• Wandering in the Dark
  • "Go through Keira's portal"
• Redania's Most Wanted
  • "Talk to Triss about the crystal from Phillipa's megascope."
    
  • "Talk to Yennefer about the crystal from Phillipa's megascope."
• Ladies of the Wood
  • "Use your Witcher Senses to find the shrine that marks the start of the Trail of Treats"

• Pyres of Novigrad
  Will fail if you choose the beggar or sewer route
  • "Look for thieves on the main square and carefully follow them."
    
  • "Follow the thief to the King of Beggars' hideout."
  Will fail if you choose the thief or sewer route
  • "Talk with beggars about the King of Beggars."
  Will fail if you choose the beggar or thief route
  • "Find an entrance into the sewers outside Novigrad."
    
  • "Fight the bandits guarding the back entrance."
• Get Junior
  • "Find Whoreson Junior's hideout.
    
  • "Use the secret passage to reach Junior's hideout."
• The Play's the Thing
  • "Recruit jugglers from the performing troupe called the Puffins."
• Ciri's Story: Breakneck Speed
  • "Mount another horse."
• A Poet Under Pressure
  Will fail if you did not find Dijkstra's treasure
  • "Ask Dijkstra for help rescuing Dandelion."
• The Great Escape
  • "Ask Zoltan for help."
• Contract: The Oxenfurt Drunk
  • "Kill the Katakan."

• The King is Dead - Long Live The King
  • "Go to Yennefer's rooms and put on formal attire."
    
  • "Go with Yennefer to the wake inside Kaer Trolde."
• Flesh for Sale
  • "Follow the pirate to his boss."
• The Calm Before the Storm
  • "Jump into the water to cool off and regenerate."
    
  • "Drink a shot of Freya's Firewater to warm up."

The Battle of Kaer Morhen

• "Kill the Wild Hunt warriors near the left portal in the forest."
  
• "Kill the Wild Hunt warriors near the center portal in the forest."
  
• "Kill the Wild Hunt warriors near the right portal in the forest."

Work in progress,
single asterisks ('*') in entries means the data has not been added yet
Many lists that should be exhaustive are not yet exhaustive.

Table of every quest pertaining to a certain category and which other quests determine its availability and which quests are its cutoff points.
In order of completion for Main and Legs, in alphabetical order for Timeless and Safe

These quests are required to progress the game.

Have cutoffs so must be done in a certain order

Don't have cutoffs but can still be missed/failed accidentally

Don't have cutoffs and can only be failed deliberately
This list will most likely not be exhaustive.

These achievements are missable in that by 100% completion if you don't have them yet you can't get them, but don't pertain to any particular area of the guide

This is missable because there is a finite and non-repeatable amount of contract monsters you can kill.

This is missable because you cannot enter fist fights you have already won, and there is a finite number of them.

1. As the related quest is known to be bugged, you should get the first diagram from Zuetzer Castle before talking to the Ofieri merchant.
   
2. Buy the Ofieri blinders, Ofieri saddlebags and either the Ofieri decorated saber or the Diagram: Ofieri saber (has to be crafted) from the Ofieri merchant at Upper Mill.
   
3. Race against him to get the Ofieri stock saddle
   
4. Do From Ofier's Distant Shores
   
5. Go to a master armorer (e. g. Yoana in Crow's Perch) and craft the 4 pieces of armor.
   
6. Have all these items in your inventory at once.

Enable the Debug Console: - Used in this guide
https://www.nexusmods.com/witcher3/mods/3375
"1.32 Patch - Debug Console Enabler - FIX"

Extended commands for the Debug Console: - Used in this guide
(can be used to get the path of an entity near the player, warping forward, & unlocking doors)
https://www.nexusmods.com/witcher3/mods/601
"Debug console extensions"

Track your completion progress: - Highly recommended
https://www.nexusmods.com/witcher3/mods/6568
"Progress on the Path - TW3 Progress Tracker (Next Gen)"

Commands to edit the tags on items:
(can be used to get the code name of an item in inventory)
https://www.nexusmods.com/witcher3/mods/2314
"Item Tag Editor"

More commands tailored to warping to specific areas:
https://www.nexusmods.com/witcher3/mods/1245
"Forgotten Worlds"

Command to fix a very specific glitch:
https://www.nexusmods.com/witcher3/mods/3310
"Fix person in distress"

Warp to waypoint (Requires compatibility versions found in comments)
https://www.nexusmods.com/witcher3/mods/1750

Fix lvl 100+ quest/treasure fix if you have a mod that lets you go beyond max level:
https://www.nexusmods.com/witcher3/mods/1748

https://steamproxy.net/sharedfiles/filedetails/?id=606273387
https://steamproxy.net/sharedfiles/filedetails/?id=1791426840

This is only available after doing Blood Simple and before returning to Regis
Using Debug Console Extensions mod and the Debug Console...

NOTE: Fast travel is blocked during these quests
To quickly get to the lair entrance type "xy(-643, -1886)" in console twice in a row.

To get into the Unseen Elder's lair to collect the Han Geidth set:

• Use the key Oriana gave you on the entrance to the Unseen Elder's lair (Near the bottom of the southwestern lake next to a place of power)
  
• Go through the water on the left, loot that chest
  
• When approaching the large open area, stop near the opening and angle yourself to the right facing the little opening on that wall then type "phase(27)" in the console
  
• go to the left until you reach a drop, go down and collect that chest
  
• continue going down and around and you'll find a little fort, loot all the mage's papers and chests here
  
• Use the reverse waterfall to walk onto the ceiling and loot the chest and the other mage's papers
  
• Loot the mage's corpse and nearby for the Cantata unique blade (This is where you would normally fight the protofleder)
  
• Fight the protofleder, spawn it using:
  spawnfrompath(dlc\bob\data\quests\main_quests\quest_files\q704_truth\characters\q704_protofleder.w2ent)

In order to escape the lair and return to Regis type "xy(-314,-955)" in the console twice in a row.

List of item codes:
https://docs.google.com/spreadsheets/d/1gMe8sagnuQxT2AxLd2UdftERsYxrlSZd6AcYWRMDfu8
http://www.vertigofx.com/public/games/tw3/witcher_3-item_list.pdf

Key missed by accepting the bribe and returning to Niellen in Wild At Heart:
additem(sq104_key)

Hearts of Stone:

Donkey ears, Painting/Trophy, & Auction items / Viper diagrams: (in case you missed some)
(to be filled in)

Items missed by saving Olgierd: (These three mutually exclusive anyway)
additem('Devil Saddle')
additem('Cornucopia')
additem('Soltis Vodka')

Blood and Wine:

If you choose to be Ravix you can't get:
additem('sq701_geralt_armor')
additem('Tourney Geralt Saddle')
additem('sq701 Geralt of Rivia sword')
(From the painting side quest)
additem('mq7009_painting_pose2')
additem('mq7009_painting_pose2_grif')

If you choose to be Geralt you can't get:
additem('sq701_ravix_armor')
additem('Tourney Ravix Saddle')
additem('sq701 Ravix of Fourhorn sword')
(From the painting side quest)
additem('mq7009_painting_pose2_ravix')
additem('mq7009_painting_pose2_grif_ravix')

If you choose to involve Guillaume you won't be able to get Vivienne's feather:
additem("sq701_item_wearable_feather")

Items missed by not using commands to get into Unseen Elder's lair:
additem('q704 vampire silver sword')
additem('q704_vampire_armor')
additem('q704_vampire_mask')
additem('q704_vampire_pants')
additem('q704_vampire_boots')
additem('bestiary_protofleder_book')
additem('Protofleder Mutagen')

Items missed by saving Syanna from Detlaff:
additem('q705_prison_stash_note')
additem('Beauclair Prison Shirt')
additem('Beauclair Prison Pants')
additem('q705_pinup_poster')
additem('q705_dirty_clothes')
additem('q705_soap')
"Small hammer and chisel for carving stone" (item code pending)
"Laundry Stick" - additem('Laundry stick')/additem('Laundry pole') (not viewable in your inventory?)

Items missed by allowing Syanna to die:
additem('q705_medal')
additem('Beauclair Casual Suit 01')
additem('Beauclair Casual Suit with medal')

Item missed either way:
additem('q702_wicht_trophy')
additem('q705_white_roses')

Facts are things the game remembers to decide what to do the next time a script (such as a quest) wants to look at past events in the game without directly looking up quest journal events.
The console has the ability to manipulate these facts.
Do either "addfact(fact)" or "removefact(fact)" depending on which facts you want to enable/disable

FULL FACTS LIST:
Since the original source has been removed, here is a mirror link to the full facts list (tw3facts.txt):
https://gist.github.com/Berny23/6f45582df8dcd63c17565568eae87195


Generic facts:
tutorial_system_is_running
standalone_ep1
standalone_ep2
witcher3_game_finished
game_is_loaded
MeditationStarted
patch_1_12
patch_phase_01
patch_phase_02
applied_patch1
applied_patch1_3

Imports from TW2 save:
import_iorweth_path
import_letho_alive
import_sheala_alive
import_henselt_alive
import_council_exists
import_arjan_dead
import_saskia_alive
import_radowid_has_anais
import_geralt_rescued_triss
import_odrin_met
import_geralt_has_tattoo
import_geralt_drank_mysterious_potion

Romance:
q309_triss_lover
q309_triss_stayed
sq202_yen_girlfriend

sq202_yen_confession
sq202_yen_just_friends
sq301_kissed_triss
q309_told_triss_you_love_her
q309_triss_left
q208_yen_lover

Main quest outcomes:

q103_daughter_visited
q103_wife_reported

q105_evil_spirit_destroyed
q105_evil_spirit_released
q105_will_help_children
q105_help_spirit

q107_anna_burnt
q107_anna_disenchanted
q107_anna_is_crazy
q107_anna_is_monster
q107_baron_hanged

q109_confronted_keira
q109_keira_defeated
q109_keira_to_km
q109_keira_to_radovid

q110_completed
q110_didnt_visit_emhyr
q110_geralt_accepted_pay
q110_geralt_refused_pay
q110_visited_emhyr

q202_hjalmar_saved
q203_cerys_saved

q206_helping_hjalmar
q206_hjalmar_king
q206_helping_cerys
q206_cerys_queen

q303_completed
q303_know_treasure
q303_geralt_killed_menge
q303_triss_killed_menge
q303_triss_on_helping_with_menge

q305_completed
q305_asked_dijkstra_for_help

q309_completed
q309_failed
q309_triss_abandons_mages

q310_ciri_faced_lodge
q310_dijkstra_philippa_talked
q310_dijkstra_spared
q310_dijkstras_other_leg
q310_geralt_helped_ciri_talk
q310_keira_done
q310_keira_lambert_love
q310_killed_sheala
q310_killed_sheala
q310_left_sheala
q310_lodge_talk_done

sq312_fact_ves_alive
sq312_fdb_quest_accept
sq312_ves_died

sq102_didnt_help_letho
sq102_helped_letho

q402_told_letho_to_go_elsewhere
q402_invited_hjalmar_to_km
q402_invited_letho_to_km
q402_invited_mousesack_to_km
q402_invited_roche_to_km

q403_folan_died
q403_vigi_died
q403_geralt_saved_lambert
q403_keira_saved_lambert
q403_lambert_dead

mq3035_roche_dies
mq3035_fdb_dijkstra_dead
mq3035_fdb_roche_talar_dead
mq3035_fdb_radovid_dead
mq3035_radovid_dead
mq3035_free_temeria

q502_ciri_dead
q502_ciri_survives
q503_ended
q504_nilfgaardians_arrive
q505_zirael_sword

Hearts of Stone:
standalone_ep1
ep1_poi_13_done
ep1_poi_16_done
ep1_poi_19_done

q602_gwent_lost
q602_pig_mascot_won
q602_fireeater_brought_back
q602_fireeater_case_solved
q602_fireeater_killed
q602_fireeater_left
q602_shani_girlfriend_w1
q602_olgierd_final_done

mh301_greater_reward
q603_all_apples_done
q603_all_quests_done
q603_circus_artist_recruited
q603_circus_elf_shot
q603_demo_dwarf_recruited
q603_demo_dwarf_survived
q603_demo_dwarf_killed
q603_safecracker_recruited
q603_safecracker_survived
q603_safecracker_killed
q603_hostage_situation_done
q603_hostage_situation_ended_in_combat
q603_pro_ewald
q603_horst_killed
q603_pro_horst
q603_ewald_killed
q603_olgierd_final_done

q604_fdb_caretaker_dead
q604_fdb_rose_taken
q604_rose_painting_taken

q605_talked_to_crazy_scholar
q605_talked_to_shani_oxen
q605_dlg_chose_olg_help
q605_mirror_banished
q605_mirror_won
q605_remove_the_mark

Blood & Wine:
standalone_ep2
player_bitten_by_vampire
vampire_invisibility

Main quest stuff:
q701_giant_headshot_kill

sq701_geralt_armor
sq701_ravix_armor
actor_sq701_delwyn_was_killed
sq701_told_guillaume
sq701_guillaume_curse_secret
sq701_guillaume_dead
sq701_guillaume_egg
sq701_guillaume_egg_epilogue
sq701_guillaume_pond_epilogue
sq701_finale_done_pond
sq701_vivienne_novigrad
sq701_vivienne_skellige
sq701_tournament_ends
sq701_won

q702_bootblack_bribed_virtue
q702_wight_is_cursed
q702_wicht_trophy_taken
q702_delivered_wicht_gland
q702_wight_killed
q702_wight_killed_after_quest
q702_wight_disenchanted
q702_wight_disenchanted_later
q702_wight_story_uncovered
q702_wight_curse_lifted
q702_marlene_rescued
q702_wight_woman_default
q702_marlene_happy_ending

q703_had_nice_suit
q703_done

q704_diva_done_shortcut
q704_know_about_unseen
q704_orphanage_done
actor_q704_ft_fleder_was_killed
q704_gravity_cave_done

q704_ft_goose_done
q704_ribbon_found
q704_syanna_freed
q704_fairy_tale_done

q704_syann_not_found_dettlaff_dies
q704_syanna_dead
q704_syanna_dies_dettlaff_dies
q704_syanna_dies_dettlaff_lives
q704_syanna_lives_dettlaff_dies

q704_done
q704_long_night_starts

q705_dont_care_shoemaker
q705_bootblack_told_truth
q705_rich_bootblack_met
q705_prison_path
q705_chr_ah_prison
q705_geralt_got_medal
q705_geralt_won_laundry
q705_geralt_won_shelter
q705_city_restoration
q705_ciri_empress
q705_syanna_correct
q705_henrietta_dead
q705_henrietta_alive

Side Quests:

mq7015_done
mq7015_failed
mq7015_hapilly_ended

mq7024_started
mq7024_renovation_in_progress
mq7024_new_upgrade_a
mq7024_wait_48h
mq7024_24h_passed
mq7024_all_upgrades_done

sq703_investor_foxhollow
sq703_investor_flovive
sq703_investor_francollarts
sq703_investor_coronata
sq703_investor_vermentino
coronata_community_consortium
coronata_community_rich
vermentino_community_consortium
vermentino_community_rich
lw_ww_sudden_end
lw_ww_uneasy_alliance

Virtues:
mq7006_compassion
mq7006_honour
mq7006_generosity
mq7006_valor
mq7006_wisdom
mq7006_all_virtues

mq7006_compassion_added_mh701
mq7006_compassion_added_mq7015
mq7006_compassion_added_mq7017
mq7006_compassion_added_mq7018
mq7006_compassion_added_sq703
mq7006_compassion_added_q701
mq7006_compassion_added_q702
mq7006_compassion_added_q703
mq7006_honor_added_mq7001
mq7006_honour_added_mq7015
mq7006_honour_added_mq7021
mq7006_honour_added_sq701
mq7006_generosity_added_mq7009
mq7006_generosity_added_mq7017
mq7006_generosity_added_mq7018
mq7006_generosity_added_mq7023
mq7006_generosity_added_q702
mq7006_valor_added_hanza
mq7006_valor_added_ff701
mq7006_valor_added_mh701
mq7006_valor_added_mq7002
mq7006_valor_added_mq7004
mq7006_valor_added_mq7009
mq7006_valor_added_mq7010
mq7006_valor_added_mq7017
mq7006_valor_added_mq7018
mq7006_valor_added_q704_knights
mq7006_valor_added_q705
mq7006_wisdom_added_gor_a_10
mq7006_wisdom_added_cg700
mq7006_wisdom_added_mq7004
mq7006_wisdom_added_mq7021
mq7006_wisdom_added_q701
mq7006_wisdom_added_q702

Examples:
If you would typically get the ciri witcher ending & you sided with dijkstra. To get the Ciri empress ending, you could run, just before reaching the white frost:
addfact(mq3035_free_temeria)
addfact(q110_visited_emhyr)

If you got the ciri empress ending and would like ciri to show up to your estate as if she had the witcher ending:
removefact(q504_nilfgaardians_arrive)
then finish the last quest of B&W

https://docs.google.com/spreadsheets/d/1hm88vFPdRlPkd57ag-KgDnQ3kByZsfwwm1cXSPnmOvc/edit?usp=sharing

https://www.vg247.com/2019/07/26/the-witcher-3-how-to-get-the-best-ending/

https://witcher.gamepedia.com/The_Witcher_3_quests

https://guides.gamepressure.com/thewitcher3/guide.asp?ID=30839

https://www.ign.com/wikis/the-witcher-3-wild-hunt/Endings

https://witcher3map.com

https://witcher.fandom.com/wiki/The_Witcher_3_secondary_quests

https://forums.cdprojektred.com/index.php?threads/missable-side-quests-list-and-guide.54774/

https://www.reddit.com/r/witcher/comments/6295d6/is_there_any_map_online_with_all_the_unmarked/

https://web.archive.org/web/20190807150506/http://www.vertigofx.com/public/games/tw3/w3journal.txt

https://www.youtube.com/user/XLetalis/playlists?view=50&sort=dd&shelf_id=35

https://steamproxy.net/sharedfiles/filedetails/?id=451274567

Content that doesn't quite fit in other areas of the guide but is still relevant or useful

If you are having trouble completing Get Junior and The Gangs of Novigrad without failing objectives
Instead of meeting the guards, jump onto the barrels then over the orange tarp to get into the hideout.

Thanks: Aspect

For the curious,
some content you can miss in the heist (by xLetalis)

Guide Author:
Magic Gonads

Guide Contributors:
SwaggyP
Aspect
Green
Berny23
BitterBrew

Commenters who contributed advice or details:
Lazarus
On3S1ckF
SwaggyP
Aspect
Green
Berny23
Mr Stizblee
Crusading For Christ
Levin
BitterBrew
Seprum
SF
TTempest
EXTSOAK
MadCrazyEagle

Commenters who inspired details to be discovered/refined:
Aspect
MysticDaedra

Media Contributors:
Aspect
DeputyGovernorOfSmiles

Media Sources:
xLetalis

Information Sources:
Witcher Fandom Wiki[witcher.fandom.com]

Mirrors:
Markdown version[gist.github.com] by Aerophus