Casualties: Unknown Demo
Orsoniks · published by Oro Interactive · released Apr 20, 2026
Casualties: Unknown is an unforgiving cave-exploration survival simulator. Your captors have tasked you with retrieving lost cargo on a foreign planet, explore its 5 layers and do your best to survive diverse hostile environments. You are just one of the thousands of test subjects sent to die.
Price
Free
US store
Reviews
95%
8,133 · Overwhelmingly Positive
Playing now
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not sampled yet
24h peak
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all-time seen —
Followers
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Steam community hub
Owners (est.)
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from review count
YouTube activity
13
videos · 30 d28
creators360K
views · 1 yTwitch activity
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avg viewers · 30 d—
hours watched · 30 d—
streamers · 30 dProduct info
from Steam's PICS · read 7h ago- Change number
- 40,934,856 · seen 7h ago
- Public build
- 24,774,057 · Aug 17, 2026 (2mo ago)
- Operating systems
- windows
- Architecture
- 64-bit
- Install size
- 542 MB · 328 MB download
- Install folder
Casualties Unknown Demo- Controller support
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- Metacritic
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- Homepage
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- Release state
- released
- Community
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Steam Deck
UnknownNo Deck test results published.
Branches · 1
every build Steam serves for this app| Branch | Build | Updated | Description |
|---|---|---|---|
| public | 24,774,057 | Aug 17, 2026 · 2mo ago |
Build history
every build id we have seen on a branch (history starts with our first read)| Build | Branch | Released | First seen |
|---|---|---|---|
| 24,774,057 | public | Aug 17, 2026 11:07 | 4d ago |
Depots · 1
content of the public branch| Depot | Name | OS | Language | DLC / shared | Size | Download | Manifest |
|---|---|---|---|---|---|---|---|
| 4576511 | all | 542 MB | 328 MB | 419854421620503848 |
Launch options · 1
| Executable | OS | Description |
|---|---|---|
\CasualtiesUnknown.exe |
all |
Languages · 2
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| English | ✓ | — | ✓ |
| Simplified Chinese | ✓ | — | — |
Packages · 0
all packagesNo packages recorded yet.
Bundles · 0
all bundlesNot part of any bundle we know.
Change numbers
all changes#40,934,856 · 7h ago#40,933,091 · 8h ago#40,932,374 · 8h ago#40,814,374 · 3d ago#40,781,068 · 4d ago
Updates · patch notes
Steam announcements tagged as patch notes, linked to the public build they followed
No patch notes seen yet for this game.