Layers
Casualties Unknown layer guides
A run is a descent through ten main layers and a short eleventh. Find out what waits on each one, how to set the difficulty you want, and which traps and creatures to take seriously.
Where to start
Know what is coming before you reach the bottom of a layer.
- All layers10 main layers plus a short 11th
- Enemies and trapsKeep a wall between you and enemies
- Run settingsParadise and Relaxed are gentler
Every Casualties Unknown layer guide
- list All layers
How many layers there are, what is on each of the first five, and how to move between them.
- 10 main layers plus a short 11th
- The demo has 5
- Radiation forces you onward
- guide Run settings
Difficulty presets, custom run settings, layer modifiers and playing unchipped.
- Paradise and Relaxed are gentler
- Desolate is brutally cold
- Modifiers change a whole layer
- list Enemies and traps
Every enemy and trap seen so far, how dangerous each is and how to disarm or avoid it.
- Keep a wall between you and enemies
- Throw junk onto spike traps
- 5 seconds to dodge a sound cannon
Layers questions players ask
How many layers are in Casualties Unknown?
Ten main layers, a shorter 11th layer and an optional bonus ending. The demo has the first five. Details →
What is the radiation line?
A rising band of radiation that forces you to keep descending. Details →
How do you survive a sound cannon?
Get behind solid cover within about five seconds of it charging. Being underwater makes the damage far worse. Details →
What difficulty should you pick?
A gentle preset like Paradise or Relaxed for a first run, then Normal once you reliably reach layer 3. Details →
What are layer modifiers?
Random conditions applied when a layer generates, such as Ionized or Infested. Details →
What is a drill pod?
A machine that digs through terrain. The full game adds more of them, and breaking one yields scrap and circuits. Details →
What is the sense of impending doom?
A moodle warning that an elder thornback is hunting you. It also spikes your blood pressure. Details →
Other sections: Survival · Health · Items · Mods · Characters · Game info · Updates