Lost Prototype
| App ID | 3487180 |
| App Type | Game |
| Developer | Unsorted Games |
| Publisher | Unsorted Games |
| Supported Systems | Windows |
| Technologies | Unreal Engine |
| Last Changenumber | 31729642 |
| Last Record Update | 17 October 2025 – 14:53:57 UTC ( |
| Release Date | 20 June 2025 – 08:59:37 UTC ( |
Lost Prototype is a walking simulator in which you have to find your way out of a maze under construction. But be aware, you're not alone in this place. Something is following you and wants to erase all your progress.
Play on Steam
Additional Information
This game is excluded from Steam Family Sharing because: Free Game
| Developer | Unsorted Games | |||||||||||||||||||
| ReleaseState | released | |||||||||||||||||||
| Publisher | Unsorted Games | |||||||||||||||||||
| IsFreeApp | Yes | |||||||||||||||||||
| Exclude from family sharing (exfgls) | 3 (Free Game) | |||||||||||||||||||
| Store Release Date | 20 June 2025 – 08:59:37 UTC ( |
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| osarch | empty string | |||||||||||||||||||
| community_hub_visible | Yes | |||||||||||||||||||
| Primary Genre | Indie (23) | |||||||||||||||||||
| Store Genres | Indie (23), Free to Play (37) | |||||||||||||||||||
| Steam Release Date | 20 June 2025 – 08:59:37 UTC ( |
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| Store Asset Modification Time | 28 June 2025 – 18:14:27 UTC ( |
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| library_assets |
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| osextended | empty string | |||||||||||||||||||
| Is free on the store? | Yes | |||||||||||||||||||
| review_score | 7 | |||||||||||||||||||
| review_percentage | 90 | |||||||||||||||||||
| Detected Technologies (?) | Unreal Engine, Intel_OID SDK, Intel_oneTBB SDK, NVIDIA_Nsight_Aftermath SDK, Ogg SDK, Vorbis SDK, XAudio2 SDK | |||||||||||||||||||
| controllertagwizard | Yes | |||||||||||||||||||
| First seen on SteamDB | 23 January 2025 – 12:54:38 UTC ( |
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Supported Languages
| 1 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | Yes |
Assets
Load all asset images
| trailer_name | Small trailer |
| trailer_category | 2 |
| trailer_480p ↴ | |
| video/webm | 257128121/movie480_vp9.webm |
| video/mp4 | 257128121/movie480.mp4 |
| trailer_max ↴ | |
| video/webm | 257128121/movie_max_vp9.webm |
| video/mp4 | 257128121/movie_max.mp4 |
| microtrailer ↴ | |
| video/webm | 3487180/873599/9c9cdf35f44715d598026a35f920e338c466b2e6/1750855213/microtrailer.webm |
| video/mp4 | 3487180/873599/9c9cdf35f44715d598026a35f920e338c466b2e6/1750855213/microtrailer.mp4 |
| adaptive_trailers ↴ | |
| dash_av1 | 3487180/873599/9c9cdf35f44715d598026a35f920e338c466b2e6/1750855213/dash_av1.mpd |
| dash_h264 | 3487180/873599/9c9cdf35f44715d598026a35f920e338c466b2e6/1750855213/dash_h264.mpd |
| hls_h264 | 3487180/873599/9c9cdf35f44715d598026a35f920e338c466b2e6/1750855213/hls_264_master.m3u8 |
| screenshot_medium | 257128121/33acce12aa10658b5bd64a387b82e831f4c986f4/movie_600x337.jpg |
| screenshot_full | 257128121/33acce12aa10658b5bd64a387b82e831f4c986f4/movie_full.jpg |
| all_ages | true |
| is_highlight | true |
| timestamp | 6 June 2025 – 09:18:52 UTC |
