Casualties: Unknown is a survival roguelike from developer Orsoniks that simulates injury and pain with exacting detail. Players control a genetically modified canine creature sent into an 11-biome cave system to retrieve an unspecified gadget. The game tracks wounds, infections, bleeding, hypothermia, sensory damage, and psychological distress through a detailed status interface.
The survival loop demands constant resource management. Wounds require extraction of foreign objects through minigames, bandaging with scavenged materials, and careful monitoring of vitals. A single misstep triggers escalating consequences. Stepping on broken glass causes catastrophic bleeding. A pressure plate trap impales the character's thigh. Falling damage compounds injuries already sustained. The game allows survival through extreme trauma if players find tourniquets and antibiotics. Characters can lose limbs, obtain prosthetics, and continue.
The procedurally generated terrain creates additional hazard. Terrain generation produces jagged obstacles that catch jumps and force digging through rock and gravel, often in darkness. Early biomes emphasize falling as the primary threat. Deeper levels introduce sonic traps that cause brain damage and massive insects that sever limbs.
The game is available on Steam and Itch. The default difficulty is listed as "Tough," with 11 biomes totaling 300 metres in height each.