Casualties: Unknown
Casualties: Unknown is an unforgiving cave-exploration survival simulator. Your captors have tasked you with retrieving lost cargo on a foreign planet, explore its 11 layers and do your best to survive diverse hostile environments. You are just one of the thousands of test subjects sent to die.
Last Updated: 5/12/2026
| Developer | Orsoniks |
| Publisher | Oro Interactive |
| Steam App Id | 4576490 |
Casualties: Unknown
Casualties: Unknown is an unforgiving cave-exploration survival simulator. Your captors have tasked you with retrieving lost cargo on a foreign planet, explore its 11 layers and do your best to survive diverse hostile environments. You are just one of the thousands of test subjects sent to die.
Last Updated: 5/12/2026
- Windows
- Mac
- Linux
About Casualties: Unknown
Casualties: Unknown is an Action, Simulation, and Adventure game developed by Orsoniks. It was released on the Steam Store by Oro Interactive.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Casualties: Unknown supports the following features:
- Family Sharing
- Single-player
Media & Sceenshots
Watch the featured video for Casualties: Unknown and see the latest screenshots from the Steam Store.
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Soures & References
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Casualties: Unknown data has been sourced from:
- Valve Corporation. (2026, May 12). Casualties: Unknown on Steam. Steam Store.
- Valve Corporation. (2026, May 12). Casualties: Unknown. Steam Community Hub.