Project Rhombus
Short description
Project Rhombus is a rhythm-based casual action game that combines exciting electronic music with stylish flat design. Hold on as long as possible, blocking the oncoming arrows moving to the beat.
- Developer
- SEROSOO
- Publisher
- PsychoFlux Entertainment
- Release
- Thu, Dec 07, 2017
- Price
- $0.99
- Reviews
- 130
- Positive
- 88%
- Followers
- n/a
- Owners (estimated)
- 100K – 200K
- Concurrent players
- n/a
- Genres
- Action, Casual, Free To Play, Indie
- Features
- Full controller support
- Tags
Review count and SteamSpy's owner range disagree, so the band is widened to cover both rather than picking a favourite. Multiplied by $0.98, the average price these copies actually sold for — weighted from the price history rather than taken from the $0.99 launch price. That is 1% below list price on average. Before Steam's cut, VAT and refunds. How these numbers are calculated.
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Media
History
Tracking started Aug 4, 2026. Charts appear once there is more than one data point — nothing has changed since.
118 data points going back to Dec 1, 2017 lie outside the 90-day window of your plan. Plus shows the complete history.
Similar games that found an audience
Games sharing at least 3 of this title's leading tags, with enough reviews to have gone somewhere. Ranked by how much they overlap, not by how big they are. − missing and + extra mark the tags each one does not share with Project Rhombus. Studio counts the titles that developer has released — the closest thing to production scale that public data allows. It is not a budget, and nobody publishes those.
| Image | Name | Studio | Shared | Tag difference | Price | Reviews | Positive | Released | Revenue (estimated) |
|---|---|---|---|---|---|---|---|---|---|
|
Symphony | Empty Clip Studios 5 titles | 5 | − Free to Play + Shoot 'Em Up | $4.99 | 833 | 86% | Mon, Aug 06, 2012 | $180k $80k – $960k |
|
Frederic: Resurrection of Music | Forever Entertainment S. A. 77 titles | 5 | − Free to Play + Comedy | $2.99 | 785 | 85% | Fri, May 16, 2014 | $124k $124k – $155k |
|
BIT.TRIP BEAT | Gaijin Games 6 titles | 5 | − Free to Play + Arcade | $9.99 | 660 | 82% | Tue, Nov 02, 2010 | $271k $121k – $4.6m |
|
Slash It Ultimate | EGAMER 18 titles | 5 | − Free to Play + Typing | $1.49 95% |
458 | 71% | Fri, Jul 14, 2017 | $180k $80k – $1.8m |
|
The Polynomial - Space of the music | Dmytry Lavrov 2 titles | 5 | − Free to Play + Psychedelic | $6.99 | 448 | 73% | Fri, Oct 15, 2010 | $128k $57k – $1.3m |
There are more like this. Your plan shows the 5 closest neighbours; Plus and Pro show up to 100 — enough to see the shape of a niche instead of a sample of it.