03 Demo
| App ID | 3782050 |
| App Type | Demo |
| Store Name | O3 - Hollow Descent: Alpha Demo |
| Developer | Ta2 Games |
| Publisher | Ta2 Games |
| Supported Systems | Windows macOS Linux |
| Technologies | Unity Engine |
| Last Changenumber | 31803643 |
| Last Record Update | 20 October 2025 – 21:55:08 UTC ( |
| Release Date | 2 July 2025 – 10:49:06 UTC ( |
| Parent App | 03 (2528960) |
O3 - Hollow Descent is a bullet-hell rogue-like shooter. Set in a surreal world inspired by the art of H.R. Giger and Zdzisław Beksiński.
Additional Information
This demo is excluded from Steam Family Sharing because: This content type cannot be shared
| Developer | Ta2 Games | |||||||||||||||||||||
| controller_support | full | |||||||||||||||||||||
| ReleaseState | released | |||||||||||||||||||||
| Publisher | Ta2 Games | |||||||||||||||||||||
| eulas |
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| Exclude from family sharing (exfgls) | 6 (This content type cannot be shared) | |||||||||||||||||||||
| Store Release Date | 2 July 2025 – 10:49:06 UTC ( |
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| osarch | empty string | |||||||||||||||||||||
| Primary Genre | Action (1) | |||||||||||||||||||||
| Store Genres | Action (1), Adventure (25), Indie (23) | |||||||||||||||||||||
| Steam Release Date | 2 July 2025 – 10:49:06 UTC ( |
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| Store Asset Modification Time | 22 September 2025 – 13:10:45 UTC ( |
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| library_assets |
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| osextended | macos64 | |||||||||||||||||||||
| Is free on the store? | Yes | |||||||||||||||||||||
| review_score | 7 | |||||||||||||||||||||
| review_percentage | 90 | |||||||||||||||||||||
| Detected Technologies (?) | Unity Engine, UnityBurst SDK, UnityHDRP SDK, UnityURP SDK, cURL SDK | |||||||||||||||||||||
| controllertagwizard | Yes | |||||||||||||||||||||
| First seen on SteamDB | 28 May 2025 – 22:49:03 UTC ( |
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Supported Languages
| 1 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes |
Categories
Hardware Categories
Full Controller Support
DualShock Controllers (USB Only)
DualSense Controllers (USB Only)
Gamepad Preferred
DualShock Controllers
DualSense Controllers
Assets
Load all asset images
| trailer_name | O3 Hollow Descent - Trailer |
| trailer_category | 0 |
| trailer_480p ↴ | |
| video/webm | 257198626/movie480_vp9.webm |
| video/mp4 | 257198626/movie480.mp4 |
| trailer_max ↴ | |
| video/webm | 257198626/movie_max_vp9.webm |
| video/mp4 | 257198626/movie_max.mp4 |
| microtrailer ↴ | |
| video/webm | 3782050/56425437/c367a80d02dbf0fb9b0d03637f53604a5034baf0/1758020315/microtrailer.webm |
| video/mp4 | 3782050/56425437/c367a80d02dbf0fb9b0d03637f53604a5034baf0/1758020315/microtrailer.mp4 |
| adaptive_trailers ↴ | |
| dash_av1 | 3782050/56425437/c367a80d02dbf0fb9b0d03637f53604a5034baf0/1758020315/dash_av1.mpd |
| dash_h264 | 3782050/56425437/c367a80d02dbf0fb9b0d03637f53604a5034baf0/1758020315/dash_h264.mpd |
| hls_h264 | 3782050/56425437/c367a80d02dbf0fb9b0d03637f53604a5034baf0/1758020315/hls_264_master.m3u8 |
| screenshot_medium | 257198626/2b307ff29b27ac5a156ffb716100416477c3a03b/movie_600x337.jpg |
| screenshot_full | 257198626/2b307ff29b27ac5a156ffb716100416477c3a03b/movie_full.jpg |
| all_ages | true |
| is_highlight | true |
| timestamp | 22 September 2025 – 13:11:47 UTC |
| trailer_name | 03 - Gameplay - Trailer |
| trailer_category | 0 |
| trailer_480p ↴ | |
| video/webm | 257153414/movie480_vp9.webm |
| video/mp4 | 257153414/movie480.mp4 |
| trailer_max ↴ | |
| video/webm | 257153414/movie_max_vp9.webm |
| video/mp4 | 257153414/movie_max.mp4 |
| microtrailer ↴ | |
| video/webm | 3782050/239971622/1f28f51adf46a190238850e9ec41d0451d0a0d85/1750374670/microtrailer.webm |
| video/mp4 | 3782050/239971622/1f28f51adf46a190238850e9ec41d0451d0a0d85/1750374670/microtrailer.mp4 |
| adaptive_trailers ↴ | |
| dash_av1 | 3782050/239971622/1f28f51adf46a190238850e9ec41d0451d0a0d85/1750374670/dash_av1.mpd |
| dash_h264 | 3782050/239971622/1f28f51adf46a190238850e9ec41d0451d0a0d85/1750374670/dash_h264.mpd |
| hls_h264 | 3782050/239971622/1f28f51adf46a190238850e9ec41d0451d0a0d85/1750374670/hls_264_master.m3u8 |
| screenshot_medium | 257153414/8771af8447be4a283a759b6df1df226a7fc19abe/movie_600x337.jpg |
| screenshot_full | 257153414/8771af8447be4a283a759b6df1df226a7fc19abe/movie_full.jpg |
| all_ages | true |
| is_highlight | true |
| timestamp | 1 July 2025 – 21:51:58 UTC |
Configuration
| Key | Value |
|---|---|
| installdir | 03 Demo |
Launch Options
0. Launch 03 Demo
| Executable | 03.exe |
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| Launch Type | Launch (Default) | |
| Description | Launch 03 Demo |
1. Unnamed launch option
| Executable | 03 Mac.app |
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| Launch Type | Launch (Default) | |
| Operating System | macos |
2. Unnamed launch option
| Executable | 03.x86_64 |
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| Launch Type | Launch (Default) | |
| Operating System | linux |