Project Blue Book: Hidden Mysteries Steam CD Key
- Genres
- Aventura, Casual, Indie
- Release date
- March 15, 2021
- Developer
- Three Gates
- Publisher
- Legacy Games
Best price for Spain
View offer →
€3.49
at Kinguin ·
4 offers from 4 stores
Save more with coupon
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Price history
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August 25, 2026
September 2, 2026
- Recorded low€3.49 August 25, 2026
- Average price€3.49
- Recorded high€3.49
Once a day we record the lowest price that can be activated in Spain. Tracking starts when the game is added to the comparison site.
It is above its usual price. If you can wait, it often drops.
August 12, 2026
September 2, 2026
- Recorded low€3.23 August 15, 2026
- Average price€3.43
- Recorded high€3.49
We record the lowest available price regardless of activation region. Tracking starts when the game is added to the comparison site.
Code copied ✓
About Project Blue Book: Hidden Mysteries
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!
System requirements
| Component | Minimum |
|---|---|
| SO | Windows 7 (64-bit version) |
| Procesador | 1.5 Ghz |
| Memoria | 2 GB de RAM |
| Gráficos | 512 MB |
| DirectX | Versión 9.0 |
Notas adicionales: Storage 1.5 GB
Requirements published by the developer on Steam. Actual performance depends on resolution and graphics settings.