So CMZ does not have randomly generating biomes, how they work is always the same and so too is the order in which they appear, this guide is to teach how they work, alongside showing and mentioning some special Zones. Now on that note, Welcome to my "The Worlds Zones" Guide.

So there will be extra notes, and they will be as followed and described below.

Distance: where the Zone roughly begins and ends

Difficultly to Traverse: how hard or dangerous it is to get by it based of terrain and counting enemy strength if playing easy or harder

Enemy/Mob Strength: how hard mobs hit and the block they can break up to in strength, and as a tip, for the most part even to a zone for 46000 roughly, zombies will to my knowledge never be able to break Blood stone, Space Rock and Space Goo. As an added note Zombies, Skeletons, and a third foe called Aliens grow in strength for HP and sometimes DMG as you go further out and they also get stronger the longer the game has been going and this is done by paying attention to the amount of days have gone by like day 10, as the longer you've been alive or the game been running adding days, the tougher the Mobs get. For example around 5 days in the distance 0-100 Red Zombies which are stronger then brown zombies can begin spawning in, This scaling is applied to Skeletons and Aliens as well. All Mobs get stronger every 5 days that gone by on the counter [5,10,15,etc] so this can add to Mob Strength.

Dragon Strength: if there is a dragon in the zone I will say where it appears and its Strength, if there is none I'll say N/A. also just like the Mobs, Dragons will also go stronger for each zone they do spawn in with more HP. Also just like the other mobs Dragons get stronger the more days have gone by. Dragons also appear every 3 days [3, 6, 9,etc] if you have not killed the dragon that has spawned in already, like the fire dragon at 100 blocks out if slain will not appear Day 3 so this can add to Dragon Strength.

How Pictures work: I will show pictures of being in a Zone, be sure to keep an eye on the distance meter [top right of the screenshot] so you know where and how far I am.

Spawn is well... Spawn you enter any world spawning in here, the most iconic part of spawn is the Bedrock and lantern tipped tower that is unbreakable.

Distance: 0-25
Traverse Difficultly: Depending on generation and placement, Noob - normal
Mob Strength: weak sauce
Dragon Strength: N/A

Surrounding the Bedrock Tower is the Zone simply referred to as "The Hills" in this zone are trees needed for making basic storage, first 3 Pickaxes and the 1st tool set. Also here is sometimes bottom areas filled with sand and caves littered into the hills.

Distance: 25-200
Difficulty to Traverse: Fairly easy.
Mob Strength: Weak but stronger then "Spawns".
Dragon Strength: Weak, this is the first dragon called the "Fire Dragon" easy to kill with either a normal or gold Assault Rifle.

Note: From this point onward I will also show the end of a zone so you can know what you should expect to see for the most part

End of Zone below

The Floating islands is a odd Zone, to explain why, CMZ was actually built off another game that was it's predecessor simply called "CastleMiner" which had water in the game which was removed for CMZ. Besides the removal of water for CMZ making the zone and the next one after this section, "The Desert" AKA "The Barren Sea", devoid of water, the Floating islands are randomly placed in the sky with some connecting to hills within the zone here and there, also dotted along the landscape are trees.

Distance: 200-950
Difficultly to Traverse: Normal-Challenging, what makes this place hard is the Cliffs and Floating islands with alot of verticality making this place a bit hard to go through. You can either go above, or go along the riverbeds, but be careful some places are covered in darkness and can spawn Skeletons on you.
Mob Strength: Normal, Zombies smack a lil harder here, and have more hp by a decent bit from spawn.
Dragon Strength: Normal, The Dragon for this zone spawns at 500 and is called "The Forest Dragon"

End of Zone below

The game Calls this a Desert, but as I mentioned in the last section with "The Floating islands and Riverbeds" CMZ is built off its father game "CastleMiner" which had water and in that game it had Oceans/Seas, so you could call this for fun "The Barren Sea" or any other name. This Zone is the best place to mass farm sand which is useful for several items including a permanent teleport block that is useful for mid to late game. It is also a wonderful basing location because its flat ground is easy to build on for massive builds with little to no terraforming or lots of digging.

Distance: 950-1600
Difficulty to Traverse: easy, its a mostly flat desert, sums it up.
Mob Strength: Medium, Zombies can break through Stone around this Zone roughly.
Dragon Strength: Medium, it appears at 1000 and this dragon is called "The Desert Dragon" why this Zone is officially called "The Desert".

End of Zone below

From the Top

Looking into the passes

Looking up to the tops

This Zone as shown in the Screenshots above is.... very vertical which is the main feature alongside being the first place you can majorly farm snow for designs in the center pieces of your base as snow is worthless for defense, this place is hard to travel in because its better to either go over, or dig under but not through the passages of the mountains as Zombies will swarm you at night in them making it hard to escape in some spots.

Distance: 1600-2300
Difficulty to Traverse: Hard, alot of jumping along the tops and sides of the mountains if trying to go over the surface.
Mob Strength: Hard/Tough, Zombies can easily smash through stone from this Zone onward, they also have Slightly more HP since their HP increases the further you go and in some cases so too does their DMG. Zombies can now destroy copper blocks int his zone moderately well.
Dragon Strength: N/A

Notes/Trivia: This is the first infamous zone for endurance players due to how hard it is to traverse through, between being stuck on normal making zombies spawn every 50 blocks forward, and the possibility of fall damage being taken, it was a fair chance you would die here. Oh and for a fun fact, there USED to be a dragon here called "The Mountain Dragon" that would appear at 1800 roughly but I assume it was removed because it was already hard to get through "The Mountains" and you could also hide easily in the nearby mountain caves to force a despawn.

Tips: I would have "Auto Climb" on here, useful for building bases anyhow because it effectively allows you to climb up 3 blocks as you jump up 2 n 3/4 roughly, or just fully dig under it til 2300, also only travel during the day to avoid zombies, even on easy.

End of Zone below

Inside of Zone

Ice Lake in Zone you can find

This is "The Snowfield" where you can mass farm snow and begin mining another weak but good looking blocks of ice for building for looks inside your base(s). This Zone is alike to "The Desert" in the fact that its pretty dang flat for the most part, the more iconic thing here is mainly the frozen lakes, which is proof that there was water in the world of CMZ.

Distance: 2300-3000
Difficulty to Traverse: normal, harder divots to go past here then "The Desert" and there with a few random holes dotted around for good measure, and the Mobs don't make this easier either with how strong they have gotten up to this Zone.
Mob Strength: Tough, Zombies of course have more HP do a little more DMG and chow down through stone now more easily destroying copper blocks
Dragon Strength: Tough, at roughly 2600 around there spawns "The Frost/Snow Dragon" boasting a big HP pool.

End of Zone below

This is the edge of the world simply put, the end of this section and the next section will show why when you get there. Now this Zone is the best for mining ores, why its nickname is "Miners Dream/Heaven" as it's chock a block full of all the ores in the game including rare diamonds. The ore veins here are also massive including diamonds which go up to 4+ which is wonderful, but in return, if you go to far in you'll enter your first encounter to the "endless night" were the sky is permanently dark and you'll be infinitely swarmed by the Undead.

Distance: 3000-3350 up to 3400
Difficulty to Traverse: Difficult, this zone steadily goes downward and has random pits you can fall into that enter into "The Underworld/Hell" which leads to the next Zone [and section] "Hell on Earth" which the fall DMG can kill you.
Mob Strength: Strong, I'm pretty sure by this Zone or the next few Zombies can now break iron blocks/walls. (More testing needed)
Dragon Strength: N/A

Notes: this zone is normally rushed by survival players for easy resources once they get at least Iron or Gold Tier gear. It is also commonly built on/at either with sky bases, on top of alien rocks [will mention later] or by 3000 for players to gather easy and abundant resources for building.

Trivia: Just like "The Mountains" there used to be a dragon here which i sadly forgot the name of, in the XBOX360 days it would spawn in about 3100 roughly and was decently hard to kill between the constant zombie spawns on normal, and the HP pool it had.

End of Zone below

Main Part of HoE

Lava Lake, how the normally look

This is Hell on Earth, a much harder and non-optional version of "The Underworld/Hell" that i will mention and show later. As the name implies just hell with nothing above you as you walk forward to who knows where [besides later mentioned sections] as you fight against endless hordes of the living dead and their Patriarch/God. This section is also plunged into a "Endless Night" where even if it was day when you enter, the sky will become dark and it'll be as if night fell upon the world which you will be swarmed by the Undead which is quite harsh when on normal.

Distance: 3300-5000, true end at 5400 which will be mentioned later.
Difficulty to Traverse: Extremely Hard, endless night pretty much as the Zombies nonstop swarm you on Normal difficulty, the lava lakes don't help either as going to far in them will burn you alive.
Mob Strength: Powerful, More DMG and HP as normal being able to two shot you more often they also can break copper, iron and possibly gold blocks so watch out.
Dragon Strength: Extreme, the most powerful dragon of all dragon types, "The Undead Dragon" appears here at 4000 having the biggest HP pool and is hard to kill without having built a proper base to stay off the hordes of zombies, and to hide in to re-gen your hp, this is the target for an endurance runner doing runs to unlock a mode called "Dragon Endurance".

Note: no end Zone picture for here, its in the next section.

Trivia: Loot Blocks cannot spawn in "Hell on Earth" nor "The Underworld/Hell" this also includes going to 5400. anything after 5400 loot blocks will Resume Appearing

So this is an odd one its not really a "Zone" more so a sub zone for "Hell on Earth" that I'm gonna mention here because it is important for endurance run as in endurance mode you can earn achievements, and for reaching this point you earn the achievement at 5000 blocks named "Around the Wrold: reach 5000 distance". Also this zone is the FIRST "New World" as there is more then one in which will be shown in later sections. Also from this point onward til you reach about 8000 you'll be going through the zones in reverse from HoE to "The Forested Hills" And I Will show the Journey, why I said to keep an eye on the distance counter at the start of this guide.

Distance: 5000-5000, where you get the achievement and everything after 5000 is the New World(s)
Difficulty to Traverse: same as HoE
Mob Strength: same as HoE but it tends to go on a slight Downward trend
Dragon Strength: N/A besides at 4000 being the undead dragon, unsure of dragons after the undead 100%

Trivia: this is essentially just a in game marker for an achievement and the point of how the games progression changes a bit, also takes on the effects of "Hell on Earth".

End of Zone below. technically part of HoE.

Not much to say here but you technically going backwards through "The Edge of The World" which will be a theme going 5000+ to go with the theme of "Around The World".

Distance 5400-5800
Difficulty to Traverse: Same as normal "Edge of The World" but in reverse, theme repeats onward for other zones heads up.
Mob Strength: Tough, So as a note, zombies tend to remain in the hard-Extreme+ Throughout NW+ distances.
Dragon: N/A, I will note here that Dragons do repeat through their designated zones after 5400 distance. Unsure of their exact spawns though but they do have Higher HP to an extent the further past 5400 you go.

Trivia: after 5000 Distance your player model will begin glitching out, it gets worse the further you go progressively.

End of Zone below

Main NW+ "Snowfields" is the same as normal "Snowfields"

Odd and unquie World gen you most likely missed near the mountains if you never walked backwards from 3000 back towards 1600.

Same general info as normal "Snowfields"

Distance: 5400-6500
Difficulty to Traverse: Same as Normal "Snowfields" but backwards
Mob Strength: Tough
Dragon Strength: Tough, "Snow Dragon"

End of Zone below

Same as Normal mountains Besides the player model glitching worse and worse as you go on.

Distance: 6500-7000
Difficulty to Traverse: Harsh with zombies being strong here now and the original difficultly of going past this Zone makes this a rougher challenge.
Mob Strength: Tough
Dragon Strength: N/A

End of Zone below

The same as normal "Desert" but backwards and harder.

Distance: 7000-7800
Difficulty to Traverse: tough, Zombies are stronger here then normal desert, so to is the Dragon.
Mob Strength: tough-powerful
Dragon Strength: tough-powerful "Desert Dragon"

End of Zone below

Same as the normal "Floating Islands" but of course Zombs and Dragon are stronger

Distance: 7800-8600
Difficulty to Traverse: Very Tough, Zombies being tougher, dragon being tougher and the original challenges of this zone do not make a fun combo
Mob Strength: tough-strong
Dragon Strength: tough-strong "Forest Dragon"

End of Zone below

Looks Like how some Spawns begin.

From the ground.

So here is where I can make some notes. You see this is back to the starting zone when going from 5000 to 8800 roughly. Sadly this is the actual end, as from here on out you just go on a loop as if you begun from "The Hills" from "The Bedrock Tower" around 0-25 Distance all the way to "Hell on Earth" to even another "New World" eventually, in which going onward will make your player model bug out more over time, and something I'll show in an upcoming section.

Distance:8600-9100 before you begin to repeat the cycle of Zone travel.
Difficultly to Traverse: Very Tough, zones are hard to traverse from here on out between zombies, dragons and glitches.
Mob Strength: powerful, zombies are always Tough or better from here
Dragon Strength: Powerful "Fire Dragon"

End of Zone below

So at some point between 8000-14500 you can begin walking through walls. I did not check fully when this begins happening but if you walk into a 2+ high wall you can begin walking through them. As I was flying the above picture shown is when I found out about it again as I had forgotten until that point about this glitch and as you can probably tell dear reader, I'm in the terrain. Also you don't suffocate when in walls so you could abuse this by walking through huge mountains and such.

Distance: sometime after 8000 roughly
Difficulty to Traverse: walking through walls is easy but if you don't wanna do it, it does become annoying, so quite Harsh.
Mob Strength: exponentially stronger as you go to each zone after 9000.
Dragon Strength: Same as Mobs growing in strength per zone forward.

Note: no after Zone screenshot

The Great Wall

On top of "The Great Wall" AKA "Lantern World"

Max Build limit of "Lantern World" [pretty sad and useless]
So at 46500 roughly is this monstrosity, assuming you go this far without your game crashing or you giving up because the glitches and the Mobs and Dragons being quite insanely strong at this point, you'll run into "The Great Wall" and it's top layer called "Lantern World". This was a very famous and yet also infamous spot in the game as it is technically the hard limit of the game, though you can walk endlessly forward if you so choose although its hard to do so in endurance or when playing on Easy difficulty and up. Building along and around the great wall was popular for a time even though it was hard to get here in normal Survival like playthroughs.

Distance: it begins at 46500 and is presumed to be infinite when going atop of "Lantern World" but ends around 65500 at that point the world repeats once more, and be warned at some point as you continue your travels you'll meet another great wall in the endless cycle of these "Far Lands"
Difficulty To Traverse: Hard at first as you either gotta nerd pole up or build a staircase to the top, but after that "Lantern World" is 100% flat.
Mob Strength: Insane, with rough memory I remember them breaking either Gold Blocks or Diamond Blocks like nothing, you need blood stone or space rock/goo to live this far out. Also the take a mag or two from either bloodstone or laser guns. Shotguns, ARs, and Snipers while aiming for heads is best bet.
Dragon Strength: Insane, I do not remember what kinda dragon was here, mighta been the removed "Mountain Dragon" mentioned in normal "The Mountains" trivia but it had alot of HP, just a ton of HP.

Trivia: This is a unique location as it has several properties, it goes all the way to the bottom of the world and nearly to the build limit going up. You also cannot walk through it giving the impression this was made to spawn in simply to discourage players from trying to go farther. This was also a popular build location in the old XBOX360 and the true ending for endurance for the most part and for the game in general. Also because the max build limit for "Lantern World" is 2 blocks tall you could not base on top of it so folks based against the wall, a good 50 blocks away or near/within the walls reach or up in the mountains. Some even built in the undergrounds to prevent night hordes of zombies to only deal with skeletons as they cannot not break blocks making it 100% safe to build underground before falling into hell, on the bloodstone "roof", or just a few blocks above the bloodstone "roof".

No End screenshot due to "Lantern World" being very long. I went to 62k and stopped going back to resume other bits of work.

This section is only here to tell you that now I will mention Sub Zones/Secondary Zones that can be found anywhere along the world. Continue Reading for these Sub/Side Zones.

Note: From this point forward there will be no ending Zone picture.

This Sub Zone is found all throughout the underground parts of the game up to "Edge of The World". In this Sub Zone and areas with properties like it [Floating Islands cliffs in some spots under them act like Caves] Can Only spawn the mob called simply "The Skeleton", When you hear rattling of bones within the caves, be prepared for a Skeleton to rush ya down.

Trivia: The further out from Spawn you go the more common rarer ores become and more plentiful the ores [more often they appear] and the bigger Ore vein sizes get. Skeletons also follow the strength rules of the Zombies and Dragons.

This is "The Underwrold" I choose to take a picture from the "Spawn Tower" part of hell to better show what it looks like inside, kinda like "Hell on Earth" but fully underground. There is lava pits dotted around. This part of hell by the "Spawn Tower" is normally used for farming in early game endurance runs as mobs down here between Zombies spawning from the ground, Skeletons falling from the "ceiling" and the rare demon are killed for loot. You could farm diamonds, gold ore, copper ore and iron bars from here, all needed for endurance runs and item mining n grinding.

Trivia: "Spawn Tower" is used to enter "The Underworld" safely so you would not risk dying to fall DMG or being finished off by a Mob. How this is achieved is either by farming the Fire Dragon at 100 distance for diamonds and gold to make a diamond pickaxe, or mining around 0-99 in early game for the rare diamonds and golds to make one that way. From there you'd dig around the base of the "Spawn Tower" making a staircase down, dig through bloodstone [mining bloodstone needs a diamond pick which Is 2 diamonds and 3 gold bars, and with 10 bloodstone + 3 diamonds you can make a bloodstone pick, which lets you mine Space Rock and Space Goo] then continue the staircase until you were in "The Underworld".

I'll begin this section differently, as Ima begin with pictures going from bottom of space rock to the surface, then to the different Size groups of these wondrous Sub ones and their nicknames. It is also here you find and fight a tough but a somewhat important foe you can farm,"The Aliens". Aliens have a decent bit of HP and from what I learned spawn in when you mine 2 space rock or space goo with a bloodstone pickaxe and if using a laser sword for mining, which is the best melee weapon and mining tool, they don't appear til after about 5-10 blocks. They also appear if your on the space rock or inside of the space rocks tunnels for too long. Now for the pictures and sizes.

Under the space rock/crater of one failed to spawn: these also spawn in alot of good ores, like gold and diamond ore which are easy to farm under, good for endurance runs or mining grinding in general.

Inside a Space Rock: all the space rock and space goo you''ll need is found inside and on the rock.

Atop a Space Rock: I picked a bigger one for this screenshot so you can see how it looks a bit. Also has holes on bigger ones leading inside it into tunnels.

Now for the different Sizes and their nicknames.

Crater/Small Rock/Ship: Sometimes they spawn in tiny, other times it just a crater, luckily the crater still has the underground ore heaven.

Space Rock/Space Ship: common from around 200-1000 and after, Also your normal size Space Rock you should expect to find mostly.

Giant Space Rock AKA "MotherShip" that's buried

Giant Space Rock AKA "MotherShip" unearthed v1

Giant Space Rock AKA "MotherShip" unearthed v2

Mega Space Rock AKA "Mega Space Ship", this is the biggest i have found, but its buried. Also keep this in mind the further you go out, the bigger these can get.

I sadly and regrettably have no screenshots or even pictures on my phone of this Zone and thus I cannot prove or show you it. Originally "Space World" was a Sub Zone in "Hell on Earth" between 4000 and 5000 that would rarely spawn. What "Space World" physically was is a bunch of different sized space rocks side to side. Though it appears space world was forcibly removed even though it was a nice Sub Zone to see as a break from the 3400-5200 "Hell on Earth" march. I remember only ever finding around 5 of them during the days that I played CMZ on XBOX360.

This is some partial evidence for the most likely removal of "Space World" spawning in, as this screenshot is showing that the below space rock seems to have hit a world gen cut off.

This is the end if my "The World Zones" guide, thank you for reading through my very long guide if you have showing the different zones and order in which they appear. I would immensely appreciate gifts of badges/awards for the hours of research and work alongside traveling to take screenshots of all the different areas in game. I would also greatly appreciate any grammar and spelling error fixes greatly.

Trivia: As a little bit of end trivia, I have mentioned previously of CMZs predecessor and the game it was made from called "CastleMiner". "CastleMiner" was originally made for the XBOX360 and was bought to obtain the creative mode CMZ has. "CastleMiner" as far as i can tell from research cannot be bought and played on steam though and because of this CMZ creative mode is already unlocked when you first play the game. I do suggest you look into "CastleMiner" when you have the time to see the game CMZ was born from.

My Other Guides Listed Below
"Loot Blocks and How They Work": https://steamproxy.net/sharedfiles/filedetails/?id=2901841911
"Spawners And How They Work": https://steamproxy.net/sharedfiles/filedetails/?id=2901872451
"The Other CMZ Version": https://steamproxy.net/sharedfiles/filedetails/?id=2913275420
"Strategies for Endurance": (TBD)