
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.
Languages: English, French, Italian, German, Spanish - Spain, Dutch, Polish, Portuguese - Portugal
Engagement
Hours played at review time, across 40 reviews with recorded playtime.
Reviews
Themes across 40 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
positive critical· bar length = how often the theme comes up
Reviews
Nice 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.
グラインド実績以外取得済み・全ステージゴールドメダル取得済みです。 ●良い点 ステージのルートを探索するパズル的な部分と、独特な操作性を生かしてタイムを短縮するTA的な2つの部分で楽しめた ステージがたくさんあり、やっていくにつれて成長を実感できるタイミングが多かった ●悪い点 ステージ選択画面がやや見にくい ゲーム内で音量調整機能がない(音のオンオフしか切り替えられない) 動く足場などの挙動でたまに時期が壁を貫通することがある(おそらくバグ) TAのタイムカウント開始が自分が動き始めたタイミングなせいで、一部のステージでタイミングを調整しにくい 自機の拡大縮小によって画面の見える範囲が変わるせいで、一部のステージで非常にストレスが溜まる 10000回拡大縮小を行うグラインド実績がある上に、その実績が壊れている(取得は可能らしいが、おそらく10000回以上の操作が必要?) ●その他 リーダーボード機能やリプレイ・ゴースト表示機能などがあるともっと良かったと思う メダルの統計表示機能などが欲しかった 操作性にやや癖がありますが、慣れてくるとかなり楽しかったのでオススメです。
Random Scuffed Games #169 https://twitch.tv/DitoMido Aktuelle Spielequeue: https://rsg.ditomido.de Vorgeschlagen von: drksmoo Lustiges Physikrätsel! Ist super chillig, mit ein paar kniffligen passagen und Leveln was eindeutig skillissue ist. Falls ihr es generell so geduldig seid könnt ihr hier jede menge casual Spaß haben während ihr auf die nächste Runde League of Legends wartet, oder abends vor dem Schlafengehen noch etwas runter kommen wollt, weil die letzte Lobby mal wieder toxisch war. Das Spielprinzip ist nicht überragend aber Grundsolide und insgesamt einfach sehr umfangreich und gut gemacht mit einer Idee die ich so noch nicht gesehen hatte. Rating: Dito: 4.4/5 Chat: 3.67/5 Gesamt: 4.04/5
Voilà comment réaliser un jeu génial avec seulement 4 touches (j'exagère mais presque). Comme Briquid, du même studio, c'est une perle. Superbe idée de combiner le mouvement directionnel et remplacer le saut par un effet de physique. Les niveaux sont bien conçus, la musique est sympa. La manière dont fonctionne la caméra est parfois gênante quand elle zoom trop ou trop vite sur le cylindre. C'est le seul défaut évident que je trouve après avoir fini une vingtaine de niveaux.
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不推荐,玩的很折磨,物理引擎过于真实了,玩个前50关就差不多得了 游戏质量属于喜加一的水平
Bardzo fajna gra na nudę. Ma bardzo proste sterowanie. Ogólnie mega
n1
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Trends
Modeled estimate over time, reconstructed from Steam's monthly review histogram.
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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