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Project Blue Book: Hidden Mysteries

1 Players In-Game
Player Score
57
4
2
Platforms
  • Windows
  • Mac
  • Linux
$6.99 See more deals

Steam Charts, Stats, and Live Player Count

At the moment, Project Blue Book: Hidden Mysteries has 1 concurrent player online and in-game. This is 0% lower than its previous all-time peak of 1 players achieved on 1/9/2026.

1 Players In-Game
1 All-Time Peak
57
Player Score
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Project Blue Book: Hidden Mysteries Review

Project Blue Book: Hidden Mysteries has achieved a Steambase Player Score of 67 / 100. This score is calculated from 6 total reviews on the Steam store — giving it a 6 user reviews rating. These are split between 4 positive reviews, 2 negative reviews, and will be updated in real-time as more players leave their feedback.

Track historical reviews and overall rating trends for Project Blue Book: Hidden Mysteries using the chart below.

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Project Blue Book: Hidden Mysteries Price

Project Blue Book: Hidden Mysteries costs $6.99 in the Steam store as of 4/3/2026. At the moment, it can only be purchased as a standalone game but may be included in future bundles for a discount.

Explore the price history chart below to track historical price changes and other pricing stats for Project Blue Book: Hidden Mysteries.

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Project Blue Book: Hidden Mysteries Deals & Discounts

Discover exclusive deals and unbeatable discounts for Project Blue Book: Hidden Mysteries through our partner marketplaces. Get a large discount (sometimes 80% off) by purchasing your Steam key through them.

We only work with the best and most-trusted marketplaces to ensure a smooth experience. After purchase, you will immediately receive your Steam key and game activation code. Take advantage of these offers and dive into the world of Project Blue Book: Hidden Mysteries without hurting your wallet.

About Project Blue Book: Hidden Mysteries

Project Blue Book: Hidden Mysteries is a Casual, Adventure, and Indie game developed by Three Gates. On 3/15/2021, it was released on the Steam Store by Legacy Games.

It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.

According to Steam’s category system, Project Blue Book: Hidden Mysteries supports the following features:

  • Family Sharing
  • Single-player
  • Steam Achievements

From the Steam community, Project Blue Book: Hidden Mysteries has been tagged with the following user tags:

  • Drama
  • Atmospheric
  • Investigation
  • Story Rich
  • Aliens
  • Historical
  • Puzzle
  • Realistic
  • Cold War
  • Linear
  • Mystery
  • Conspiracy
  • Detective
  • Hidden Object
  • Sci-fi
  • Point & Click
  • Casual
  • America
  • Adventure
  • 2D

Media & Sceenshots

Watch the featured video for Project Blue Book: Hidden Mysteries and see the latest screenshots from the Steam Store.

Related Packages

Project Blue Book: Hidden Mysteries is referenced by 1 package in the Steam Store.

NamePriceActions
Project Blue Book$4.54View

More Steam Charts

Track historical trends for Project Blue Book: Hidden Mysteries community hub members and its growth over time. It currently has 69 followers in its community.

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Frequently Asked Questions

Soures & References

Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in real-time to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.

Project Blue Book: Hidden Mysteries data has been sourced from:

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