iO
Short description
iO is an abstract physics platformer about size and speed. Grow bigger and smaller in order to solve some of the trickiest puzzles. Reach the exit as quickly as possible and grab a gold medal as your reward!
- Developer
- Gamious
- Publisher
- Gamious
- Release
- Fri, Dec 05, 2014
- Price
- $4.99
- Reviews
- 102
- Positive
- 81%
- Followers
- n/a
- Owners (estimated)
- 100K – 200K
- Concurrent players
- n/a
- Genres
- Action, Indie, Racing
- Features
- Full controller support, Steam Trading Cards, Stats, Steam Leaderboards, Remote Play on TV
- Tags
Review count and SteamSpy's owner range disagree, so the band is widened to cover both rather than picking a favourite. Multiplied by $4.75, the average price these copies actually sold for — weighted from the price history rather than taken from the $4.99 launch price. That is 5% 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 10, 2026. Charts appear once there is more than one data point — nothing has changed since.
203 data points going back to Dec 1, 2014 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 iO. 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) |
|---|---|---|---|---|---|---|---|---|---|
|
EDGE | Two Tribes 4 titles | 4 | − Racing − Physics + Platformer + Great Soundtrack | $6.99 | 1,824 | 92% | Thu, Aug 11, 2011 | $482k $214k – $2.9m |
|
Cat on a Diet | Nawia Games 2 titles | 4 | − Racing − Puzzle-Platformer + Cats + Casual | $4.99 | 527 | 82% | Mon, Feb 29, 2016 | $101k $45k – $848k |
|
Face It - A game to fight inner demons | Ilex Games 8 titles +1 | 4 | − Racing − Physics + Adventure + 3D Platformer | $3.99 | 523 | 59% | Fri, Jun 09, 2017 | $64k $29k – $2.7m |
|
Ballex | Mushreb Games 2 titles | 4 | − Action − Puzzle-Platformer + Casual + Adventure | $3.99 | 495 | 88% | Tue, Aug 13, 2019 | $80k $72k – $142k |
|
Vessel | Strange Loop Games 2 titles | 4 | − Racing − Puzzle-Platformer + Platformer + Steampunk | $4.99 | 432 | 89% | Thu, Mar 01, 2012 | $94k $42k – $2.4m |
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.