String Theory
Short description
You've played rhythm games, but have you ever played a music game? String Theory is a unique audio puzzle game that trains the player to recognize musical chords. Pit your ear against 20 different BGMs, each with 14 different chord variations. Learn to recognize chords played on over 20 different instruments and synthesizers.
- Developer
- Zenisport
- Publisher
- Zenisport
- Release
- Wed, Feb 17, 2016
- Price
- $8.99
- Reviews
- 36
- Positive
- 64%
- Followers
- n/a
- Owners (estimated)
- 0 – 20K
- Concurrent players
- n/a
- Genres
- Casual
- Features
- Steam Trading Cards, Steam Leaderboards
- Tags
Review count and SteamSpy's owner range agree well enough to narrow the estimate down to this band. Multiplied by the $8.99 launch price — there is not enough price history for this game to weight the copies by what they actually sold for. Before Steam's cut, VAT and refunds. How these numbers are calculated.
Waiting for String Theory to get cheaper? Name your price and we will email you when it gets there.
Media
History
2 data points since Aug 1, 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.
Lowest recorded price: $8.99 on Aug 1, 2026. That is the current price.
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 String Theory. 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) |
|---|---|---|---|---|---|---|---|---|---|
|
Human Resource Machine | Tomorrow Corporation 4 titles | 4 | − Music + Programming + Simulation | $7.49 50% |
3,261 | 95% | Thu, Oct 15, 2015 | $2.2m $978k – $15m |
|
Circuits | Digital Tentacle first game | 4 | − Education + Minimalist + Singleplayer | $4.99 | 1,676 | 89% | Thu, Apr 17, 2014 | $378k $378k – $507k |
|
Chime | Zoë Mode 3 titles | 4 | − Education + Great Soundtrack + Rhythm | $4.99 | 653 | 95% | Mon, Sep 06, 2010 | $147k $65k – $998k |
|
BOOKS | UNIOCS first game | 4 | − Music + Singleplayer + Relaxing | $0.99 | 193 | 64% | Wed, Aug 23, 2017 | $8k $3k – $45k |
|
Musaic Box | KranX Productions 3 titles | 4 | − Education + Point & Click + Hidden Object | $4.99 | 139 | 95% | Thu, Mar 19, 2009 | $30k $13k – $242k |
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.