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!
Developer: Three Gates
Publisher: Legacy Games
Release Date: 15 Mar 2021
Genre: Adventure, Casual, Indie
Steam Regional Prices
Compare the price of Project Blue Book: Hidden Mysteries across different Steam regions. Prices are converted to RUB at the current exchange rate.
| Region | Price | Discount | In RUB |
|---|---|---|---|
| Turkey (TRY) Best Price | 6.99 TRY | — | 18 ₽ |
| Russia (RUB) | 175.00 RUB | — | 175 ₽ |
| Brazil (BRL) | 14.49 BRL | — | 218 ₽ |
| Ukraine (UAH) | 129.00 UAH | — | 222 ₽ |
| Kazakhstan (KZT) | 1,400.00 KZT | — | 228 ₽ |
| Europe (EUR) | 5.69 EUR | — | 510 ₽ |
| USA (USD) | 6.99 USD | — | 529 ₽ |
Prices updated: 18.04.2026 21:57 MSK
How to Buy Cheaper?
The lowest prices are usually in Turkey, Kazakhstan, and Brazil regions. To purchase, you need to top up your Steam wallet in the required currency. Compare top-up services and choose the best one by fees and convenience.
