Casualties: Unknown layers map
Last updated Unofficial fan guide
A run takes you down through ten layers of an alien planet to recover lost cargo on layer 10, Where We Must Reach. A drill pod then carries you up, it breaks, and you climb the short eleventh layer, Crimson Ascent, to the surface and an ending. The free demo has only the first five layers; layers 6 to 11 were added in the 1.0 release.
Depth: each layer is about 307 m (1,024 blocks) tall per wiki.gg; miraheze says 300 m. Exact meters for each layer start are not officially published.
| # | Layer | Main hazards | Key resources |
|---|---|---|---|
| 1 | Gravel LandsCold starting layer of small linked caves of stone, gravel, soil and clay with groundwater pools; short falls and light from holes in the background. | Enemies: shade crawler onlyTraps: geysers, jump pads, spike traps | Plants: glowplant, geotree, hydreed, stoneplant, leadbush, ceiling rye (miraheze) |
| 2 | Deeper Gravel LandsDarker continuation of layer 1 with no light holes, concrete beams and lumalgae pools; tougher traps appear. | Enemies: shade crawler, cave tick swarmsNew traps: barbed fence, bear trap, cave tick spawner | Not listed |
| 3 | Dried DesertSpacious sand and hard-stone caves with tall drops and deadly traps; groundwater is scarce and viscous oil pools are common. | Enemies: shade crawler, sand stalker (miraheze), wall biter (wiki.gg)Traps: turrets, coils (wiki.gg), stalactites, landmines, waste pipes | Loot/tools: rose lights, climbable sandvines, recharging station vaults (often flooded with oil)No container crates, medical crates or food boxes (miraheze) |
| 4 | WastelandRadioactive fallout layer with no enemies but sound cannons, toxirock, spent fuel and the traps of the desert. | Enemies: noneTraps: sound cannons, turrets, coils, landmines, stalactites, waste pipes, spent fuel | Food boxes can spawn here (miraheze) |
| 5 | Overgrown DepthsJungle layer full of edible plants, sap and water, where combat with thornbacks and the huge elder thornback is the main threat. | Enemies: thornback, elder thornback, overgrown tick, cave tick, wall biter/sand stalker, tentacle plantTraps: skullcrusher, grabber plant, bear traps, spikes | Food is plentiful (starvation a non-issue per wiki.gg)Last layer of the demo; ilmenite (titanium ore) spawns from layer 5 on (7.0 patch notes) |
| 6 | Frozen ChasmIce layer where the cold itself is the main killer; you hop between heaters, heatferns and life pods to stay warm. | Enemies: snow strider, shade crawlerTraps: gunmines, turrets, fan traps, thin ice, icicles, ice stalagmites | Warmth: ion space heaters, heatferns (formerly xaloris), life pods |
| 7 | Fungal PoolsFungus layer with constant rain; sleeping while wet outside a life pod can freeze you to death. | Enemies/traps: grabber-shrooms, sawblades, sidestabbers, dropshrooms, ticksSome fungus gives off radiation (miraheze) | Only layer with fungali bungali -> bunchunk (procoagulant ingredient) |
| 8 | Crystalline HollowChaotic terrain of glowing crystals with huge drops; crystals can have random special properties and flying Manifestations attack. | Enemy: Manifestation (its remains split into two more if not eaten or destroyed) | Not listed |
| 9 | Geothermal VentsExtremely hot layer with magma; air pressure starts to build in its lower half. | Hazards: magma, lava geysers, lava lamps, pistons, sawblades, fan traps, bear trapsEnemies: cryo drones disguised as crates (freezing beam), laser drones (miraheze), wall tentacles that drain blood | Relief: coldpuffs, air-cooled rooms |
| 10 | Where We Must ReachDeepest layer holding the cargo; pressure keeps rising while you stay, and its traps mix those of earlier layers. | Traps: turrets, ceiling turrets, landmines, coils, sound cannons, spent fuel, skullcrushers, sawblades, barbed fences, bear traps, spikes, pistonsNo enemies (miraheze) | Not listed |
| 11 | Crimson AscentShort final layer: the drill pod breaks and you climb up to the surface; the exit is at the top. | No enemies listed | Red flora: crimson bush, crimtree, pus sacks, veins, pops, mushlights |
After the surface, the Lab follows for two of the three endings. It is an ending area, not a layer.