Casualties: Unknown Layers, Characters and Endings

How many layers are there

The official store listing says the game sends you through 11 layers of a foreign planet, and the community layer index is titled as covering all 11 layers and their modifiers. An earlier progress update breaks that down more precisely: ten main layers, a shorter eleventh layer and an optional bonus ending sequence. An independent wiki states the same structure. So "eleven" is the total, but the last layer is shorter than the rest.

What 1.0 added

The update log records that release 1.0 shipped on 9 November 2026 with layers six to eleven, three endings and prosthetics. A full-game recording describes facing six new layers filled with unknown threats in the release build, and says the first five layers were already familiar from the demo. That is why older guides appear to describe a much shorter game — they were written for the demo.

Named environments

The layer index names the Gravel Lands and the Overgrown Depths among its environments. The beginner guide describes the Gravel Lands as the safest starting layer, so it is the natural place to learn the systems before descending. A 1.0 gameplay recording follows a run working from the second layer toward layer three while preparing supplies.

Endings

The store lists multiple endings as a feature, and an independent field guide describes three endings in the launch build. Community reports describe a final climb to the surface and the endings, but those reports are not a first-hand confirmation of the exact conditions for each outcome. This page does not claim to know the trigger for any specific ending.

Planning a run

Descending is also a saving decision: the normal save point is the layer transition, not the middle of a layer. Prepare light and clean water and dressings before committing to a deeper layer, because returning safely with a climbing rope is not guaranteed.