What they are
The deep layers are the dungeon. You ride the cursed elevator down from the Outpost into procedurally generated, shifting ruins, strip them for resources, and try to get back up before the Corrupted stop you.
The official description is explicit about the central rule: the deeper you go, the worse the corruption gets — bodies distort, sound warps, and the Corrupted vessels down there react unpredictably to noise, movement and each other.
The developers use "Deep Layers" as a proper noun. Their post-launch roadmap even signs off "See you in the Deep Layers."
Depth is the difficulty dial
There is no separate difficulty setting. Depth is the difficulty setting, and the landmarks players have reported line up with it:
| Depth | What appears |
|---|---|
| Level 5 and below | The Corrupted Elite encounter, reached through a portal |
| Round 7 | Yellow Gumballs start appearing, "but it's rare" |
| Below depth 10 | The Clown boss, with a guaranteed legendary Gumball on the podium |
The boss is behind a red portal, and the guide that says so recommends bringing extra ranged weapons for it — see weapons.
Every descent has rules attached
Before you go down, the elevator shows modifier symbols that set the conditions for that run: a broken fuse you must replace before you can leave, a blackout, tougher enemies, a map room. You do not choose them.
The full table, including the two symbols nobody has decoded, is on elevator symbols. The one that can strand you is the fuse.
What you are down there to collect
- Scrap from furniture — build constructs on the spot or carry it home
- Coins via the Grinder, which is what pays the elevator
- Purple orbs — furniture blueprints for the Outpost
- Orange orbs — mini robots, and they only drop after you beat a boss
- Glowing valuables, which give room XP once they are home
- Beds, which can be found down there as well as built
Enemies arrive in waves, and with the reinforcement modifier active they come two per wave.
Getting back out matters more than going deeper
The loop only pays if you extract. Two rules from the guides that shape every run:
- Bank the elevator fee early. An elevator that is already paid is an exit you can reach while being chased
- Anything loaded onto the elevator comes home — loose gear, furniture, constructs. It does not need to be possessed
If your vessel breaks down there, there is no revive — see how to revive.
September: a new biome
The developers' roadmap names their first major post-launch content update after this place:
The Deep Layers Update — "one new biome and several new enemies", planned for September.
Stated as a monthly goal rather than a fixed date. A new hat findable in the Deep Layers already shipped in patch 1.07.
What is not confirmed
- How deep the layers go. Depth 10+ is described; no source states a floor
- Whether biomes already vary by depth, or whether September's is the first
- Whether the generation uses seeds you could share or reroll
- What the "map room" map actually shows beyond basement size and routes
- Whether difficulty scales continuously with depth or in steps at specific levels