Survival guides
Start with the official tutorial, then use these focused notes to prepare for the next descent. Each guide separates confirmed demo facts from general strategy.
5 guides available
Your first descent
Start with the tutorial, learn the survival loop, and make fewer irreversible mistakes.
Read guide ↗FIELD NOTE / MEDICAL GUIDEBleeding, wounds & survival
A practical way to think about the demo’s limb and cardiovascular systems.
Read guide ↗FIELD NOTE / CRAFTING GUIDECraft for the next hazard
How to turn scavenged resources into survival choices without guessing recipes.
Read guide ↗FIELD NOTE / CAVE LAYERSFive layers in the demo
What the official listing confirms about the descent and how to prepare.
Read guide ↗FIELD NOTE / FREE DEMODownload the official demo
Steam demo and itch.io prototype: two verified routes into Casualties: Unknown.
Read guide ↗Source standard
Game facts come from the official full game, Steam demo and developer itch.io page, checked 12 November 2026. Practical advice is framed as strategy rather than a claim about hidden mechanics or exact item recipes.