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 ( |
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| 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 ( |
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| Store Asset Modification Time | 4 March 2021 – 22:57:35 UTC ( |
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| osextended | empty string | |||||||||||||||
| Detected Technologies (?) | Unity Engine, UnityIL2CPP SDK | |||||||||||||||
| restricted_countries | DE Germany |
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| First seen on SteamDB | 2 February 2021 – 23:56:31 UTC ( |
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Supported Languages
| 1 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| English | Yes |
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