Casualties: Unknown: get yourself down alive

Keep your body working

An injury is more than a smaller health bar. Bleeding, infection and damage to individual limbs can interrupt an expedition. You need to make room for treatment as well as exploration, while your character’s mood adds another pressure. Supplies left by earlier expeditions may help, but abandoned machinery and traps make careless scavenging costly.

Decide what to carry further

Gather more resources or keep descending; craft a useful tool or conserve your supplies; explore another passage or deal with an injury first. The appeal is in those practical choices. Loot and danger settings can be adjusted from the main menu, giving players some control over the pressure.

Players who enjoy demanding survival systems and learning how items fit together may find plenty to investigate. The developer warns of violence, dismemberment, drug use, depression and self-harm themes. The two images here are official beta 6.0-pre5 press screenshots, not verified final-release or current-demo captures.

Try five layers now

As checked on November 4, the free Steam demo is available and the full game is planned for November 9. The demo covers five layers. The announced full release extends the descent to eleven layers and includes three playable characters. These are release plans, not confirmed demo features.

The developer says the demo will not receive the full game’s changes, so treat it as a sample rather than a complete preview of release content or balance. Steam lists English and Simplified Chinese support. The Chinese store page also mentions an official-channel translation download; check the current language instructions for the version you install.

What a wiki could help with

A wiki could connect item uses and crafting ingredients with practical treatment and exploration advice. Use the interest button if those references would help you; the English and Chinese editions share one count. This introduction does not announce a new wiki.

Sources

• Orsoniks / Oro Interactive · full game on Steam (2026-11-04)
• Orsoniks · 未知伤亡 on Steam (2026-11-04)
• Orsoniks · separate five-layer demo (2026-11-04)
• Orsoniks · release announcement and demo update warning (2026-11-04)
• Oro Interactive · October 15 announcement and linked Media Kit (2026-11-04)

Official pre-release gameplay screenshots: Orsoniks / Oro Interactive, supplied in the publisher-linked Media Kit for editorial coverage. Beta 6.0-pre5; subject to change. Copyright remains with the rights holders.