Project Arrhythmia
Short description
"Project Arrhythmia" is a musical bullet-hell in which all things beautiful are deadly. Avoid the musically timed pulse of blocks and bars, and in the process you might just find out what this mysterious "Project Arrhythmia" is.
- Developer
- Vitamin Games
- Publisher
- Kwalee
- Release
- Fri, Jun 14, 2019
- Price
- $14.99
- Reviews
- 2,426
- Positive
- 96%
- Followers
- n/a
- Owners (estimated)
- 0 – 20K
- Concurrent players
- 7
- Genres
- Action, Adventure, Indie, Strategy, Early Access
- Features
- Multi-player, Co-op, Shared/Split Screen Co-op, Shared/Split Screen, Full controller support, Steam Workshop, Steam Leaderboards, Includes level editor, Remote Play Together
- Tags
Review count and SteamSpy's owner range disagree, so the band is widened to cover both rather than picking a favourite. Multiplied by $11.64, the average price these copies actually sold for — weighted from the price history rather than taken from the $14.99 launch price. That is 22% below list price on average. Before Steam's cut, VAT and refunds. How these numbers are calculated.
Waiting for Project Arrhythmia to get cheaper? Name your price and we will email you when it gets there.
Media
History
5 data points since Jul 29, 2026. Gaps mean nothing changed — the value carries forward.
The revenue curve is an estimate, not a measurement. It is the only calculated series here: each interval takes the review growth of that period, multiplies it by the sales-per-review factor and by the price actually charged at the time, and adds the result to the running total. That is why it climbs more slowly through discount periods than the review curve next to it. The last point is the same figure quoted above — gross, before Steam's cut, VAT and refunds. How these numbers are calculated.
The blurred area is the rest of the history. 164 further data points reach back to Jun 1, 2019 — your plan shows the last 90 days of it. How far each series in particular reaches is written on its own chart; not every one of them goes back that far. The shape in the blurred area is decoration, not data: the figures are not in this page at all. Plus unlocks the complete series.
Lowest recorded price: $8.99 on Oct 28, 2019.
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 Arrhythmia. 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) |
|---|---|---|---|---|---|---|---|---|---|
|
A Dance of Fire and Ice | 7th Beat Games 2 titles | 4 | − Bullet Hell − Action + Singleplayer + Indie | $5.99 | 79,337 | 94% | Thu, Jan 24, 2019 | $20.1m $11.2m – $28.1m |
|
Just Shapes & Beats | Berzerk Studio 4 titles | 4 | − Action − Level Editor + Great Soundtrack + Multiplayer | $19.99 | 24,177 | 98% | Thu, May 31, 2018 | $20.4m $18.7m – $36.2m |
|
Intralism | KHB-Soft 6 titles | 4 | − Bullet Hell − Action + Indie + Fast-Paced | $2.99 | 4,287 | 86% | Fri, Nov 04, 2016 | $500k $222k – $2.6m |
|
Rhythm Fighter | echo games first game | 4 | − Bullet Hell − Level Editor + Indie + Adventure | $5.69 62% best price ever |
379 | 81% | Wed, May 27, 2020 | $300k $300k – $454k |
|
Pianistic | Bytecat Games 2 titles | 4 | − Bullet Hell − Action + Atmospheric + Singleplayer | $1.99 | 245 | 87% | Tue, Sep 01, 2020 | $18k $8k – $32k |
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.