
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!
Modeled estimate, not a reported figure. How we estimate →
About
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Sums Steam only; PlayStation, Xbox publish no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $4.99 | 235reviews | 81% | — | $25.1K |
| $7.99 | 52ratings | 80% | — | not modelled | |
Engagement
Reviews
Themes across 40 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
☀️
💋
A unique puzzle game. Like all puzzles games, this one has way too many levels and it's boring. Though let it be known I hate puzzles games, unique or otherwise. Honestly, just watch the trailer. If it makes you say, "gee, that looks fun!" (or some semblance of that) then buy it. You'd probably enjoy it.
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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Languages: English, French, Italian, German, Spanish - Spain, Dutch, Polish, Portuguese - Portugal
| $7.99 |
| 13ratings |
| 64% |
| — |
| not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Hours played at review time, across 40 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
kox gra
best game ever
Not bad
Nice game
Bad Game
iO, developed and published by Gamious, is a minimalist physics-based platformer that builds its entire experience around a single, elegantly simple idea: controlling a ball that can dynamically change its size to manipulate speed and momentum. While the concept may initially seem modest, the game quickly reveals a surprising level of depth, transforming that lone mechanic into a layered and demanding test of precision, timing, and spatial awareness. It’s the kind of design that thrives on restraint, proving that complexity doesn’t always require a multitude of systems—just one well-executed core. The moment-to-moment gameplay is where iO truly distinguishes itself. Players must constantly adjust the size of the ball to navigate slopes, gaps, and obstacles, carefully balancing weight and velocity. Enlarging the ball increases its mass, making it easier to maintain momentum and resist sudden disruptions, while shrinking it allows for quicker acceleration and sharper control. This interplay creates a dynamic flow that feels both intuitive and challenging, as every action directly influences how the ball behaves within the environment. The physics are impressively consistent, which is crucial for a game that demands accuracy; failures rarely feel unfair, even when they stem from the smallest miscalculations. As players progress, the level design evolves in complexity, introducing more intricate layouts that require a deeper understanding of the mechanics. Early stages serve as a gentle introduction, but later levels push players to think several steps ahead, chaining movements together with near-perfect timing. The inclusion of a medal-based scoring system—rewarding faster completion times with higher ranks—adds a competitive layer that encourages replayability. This transforms each level into not just a puzzle to solve, but a challenge to master, where shaving off fractions of a second becomes a compelling goal in itself. Visually, iO embraces a clean and understated aesthetic that prioritizes clarity above all else. The environments are simple but effective, ensuring that players can immediately read the terrain and focus entirely on execution. There’s a quiet confidence in this approach; the game doesn’t attempt to dazzle with elaborate visuals, instead relying on smooth performance and responsive controls to carry the experience. The audio design follows suit, offering a subtle backdrop that complements the gameplay without ever drawing attention away from it. That said, the game’s commitment to a single mechanic can occasionally work against it. Over longer sessions, the lack of variety may lead to a sense of repetition, particularly for players who prefer more diverse gameplay systems. Additionally, some of the later levels demand extremely precise inputs, which can result in moments of frustration when success hinges on near-perfect execution. While these challenges are part of the game’s appeal, they may not resonate with everyone, especially those less inclined toward trial-and-error progression. Even with these limitations, iO stands as a strong example of focused game design done right. It takes a simple idea and explores it thoroughly, offering a rewarding experience for players willing to engage with its mechanics on a deeper level. The satisfaction of mastering its physics and overcoming its toughest challenges is undeniable, making it a worthwhile experience for fans of skill-based platformers. Rating: 8/10
Challenging Puzzles.
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Players by region
Where this game's players are, estimated from review languages.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $247 | 2 | 100% | $4.99 | |
| — | 0 | — | — | |
| — | 0 | — | — | |
| — | 0 | — | — | |
| $17.6M | 62.1K | 92% | $12.49 | |
| $2.8M | 15.3K | 98% | $6.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $25.1K | 218 | 76% | $3.99 | |
| $25.1K | 113 | 79% | $14.99 | |
| $25.1K | 53 | 74% | $19.99 | |
| $25.1K | 68 | 84% | $19.99 | |
| $25.1K | 237 | 93% | $7.99 | |
| $25.1K | 117 | 90% | $6.99 |