Project Blue Book: Hidden Mysteries
| App ID | 1543990 |
| App Type | Game |
| Developer | Three Gates |
| Publisher | Legacy Games |
| Supported Systems | Windows |
| Technologies | Unity Engine |
| Last Changenumber | 27924129 |
| Last Record Update | 11 March 2025 – 23:04:22 UTC ( |
| Release Date | 15 March 2021 – 14:18:55 UTC ( |
It’s 1952, and the U.S. Air Force is operating a top-secret investigation: Project Blue Book. As a newly recruited agent, it’s your job to uncover the truth behind these real declassified UFO sightings. Test your observation and investigation skills in this out-of-this-world hidden object adventure!
Additional Information
| Developer | Three Gates | |||||||||||||||
| community_visible_stats | Yes | |||||||||||||||
| ReleaseState | released | |||||||||||||||
| Publisher | Legacy Games | |||||||||||||||
| Store Release Date | 15 March 2021 – 14:19:04 UTC ( |
|||||||||||||||
| osarch | empty string | |||||||||||||||
| community_hub_visible | Yes | |||||||||||||||
| Primary Genre | Casual (4) | |||||||||||||||
| Store Genres | Adventure (25), Casual (4), Indie (23) | |||||||||||||||
| Steam Release Date | 15 March 2021 – 14:18:55 UTC ( |
|||||||||||||||
| Store Asset Modification Time | 4 March 2021 – 22:57:35 UTC ( |
|||||||||||||||
| library_assets |
|
|||||||||||||||
| osextended | empty string | |||||||||||||||
| Detected Technologies (?) | Unity Engine, UnityIL2CPP SDK | |||||||||||||||
| restricted_countries | DE Germany |
|||||||||||||||
| First seen on SteamDB | 2 February 2021 – 23:56:31 UTC ( |
|||||||||||||||
Supported Languages
| 1 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| English | Yes |
Tags
Categories
Assets
Load all asset images| clienticon | a0773887ed459ff6911e4df8961c63b831fe3205 | ||||||||||||||||||||||||||||||
| clienttga | 2a7db159c294cc6435086d608dbed05d5e06bb72 | ||||||||||||||||||||||||||||||
| icon | a47e9f3529c9e6237f6c8a036ee6b72461b068d9 | ||||||||||||||||||||||||||||||
| logo | 9ad624693bc5a946a3973aba89ae0160da6662c0 | ||||||||||||||||||||||||||||||
| logo_small | 9ad624693bc5a946a3973aba89ae0160da6662c0_thumb | ||||||||||||||||||||||||||||||
| small_capsule |
|
||||||||||||||||||||||||||||||
| header_image |
|
||||||||||||||||||||||||||||||
| library_assets_full |
|
||||||||||||||||||||||||||||||
| Assets |
|
||||||||||||||||||||||||||||||
| Trailers |
|
||||||||||||||||||||||||||||||
Launch Options
0. Unnamed launch option
| Executable | Project Blue Book.exe |
|
| Launch Type | Unspecified | |
| Operating System | windows |
Configuration
| Key | Value |
|---|---|
| installdir | Project Blue Book |