Paid
Project Blue Book: Hidden Mysteries - Steam Copies Sold & Revenue Statistics
Game information
Game information
Total GrossTotal Net
>$5K>$5K
Copies Sold
>1K
New owners
May 2026
Only for membersSales
Category Ranking History -
Owners
Steam Copies Sold & Revenue by Player Language
Game context & FAQ
Steam list price (this language tier)
USD storefront tier (default international): $6.99. USD reference tier: $6.99.
Quick answers
- What Steam list-price tier does GameSensor mirror for Project Blue Book: Hidden Mysteries on this localized page?
- Our snapshot on 2026-06-04 shows about $6.99 for the storefront tier paired with this language view, alongside a USD tier of $6.99. Those are informational list tiers before VAT or running discounts.
- How are Steam copies sold and gross revenue computed?
- They’re modeled estimates from Steam review throughput, inferred player languages, historical price ladders per currency, and whether the SKU was temporarily free-not official Valve financials. See the indie methodology guide for formulas.
- Where do I find language mix data for Project Blue Book: Hidden Mysteries?
- Look for “Steam Copies Sold & Revenue by Player Language” above; it breaks review volume down by Steam’s detected languages, which also drives our regional revenue weighting.
Information
Project Blue Book: Hidden Mysteries was released on Steam on March 15, 2021 and has been available for 3 months.
According to GameSensor analytics, in May 2026, the game sold >1K copies, generating a total Steam revenue of >$5K. These numbers reflect strong interest from players and steady commercial performance.
This is the 2th title released by Three Gates, demonstrating consistent production output and a stable release cycle.
A key factor driving the performance of Project Blue Book: Hidden Mysteries is its international audience. The Steam player-language distribution shows that users primarily play the game in:
• English
• Czech
• Traditional Chinese.
Language distribution directly affects buying behavior, regional sales peaks, and long-term retention. Games with a diverse multilingual audience usually demonstrate stronger global performance and broader revenue stability.
The current Steam user rating for Project Blue Book: Hidden Mysteries is moderately.
Compared to the studio’s previous release - Legends of Aethereus - the game currently holds a higher rating. Its sales performance is 32214% lower relative to Legends of Aethereus over the same number of days after release.
Overall, sales are 16157% lower compared to the average performance of the last 2 paid titles released by Three Gates. This comparison helps position Project Blue Book: Hidden Mysteries within the studio’s broader commercial history.
Within the full catalog of the publisher Legacy Games, Project Blue Book: Hidden Mysteries currently ranks 6 among the most financially successful projects
Only game sales are included in the calculations, DLC sales and in-app purchases are excluded.
Project Blue Book: Hidden Mysteries: the storefront tied to USD storefront tier (default international) shows $6.99 as of 2026-06-04, with USD reference $6.99. We plug these tracked tiers into the review-based gross model.