Game overview

iO

Gamious · Dec 5, 2014

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!

Indie Action Racing Physics Puzzle

Last tracked players: 0
All-time peak: 1
24-hour change: Unavailable
Steam reviews: 81% positive

Delayed observation · last tracked Oct 12, 2026 12:49 UTC. Values marked unavailable are not estimated.

About this game Read the full description

iO is a physics platformer in which you control a ball. By growing or shrinking the ball you can influence its speed and weight. Use these mechanics to gain momentum and make your way through the levels. Toy with the laws of physics, solve the puzzles and reach the exit as quickly as possible. Can you win the gold medal in all levels?

Features:

225 challenging levels to solve, including the extra tough Impossiball Levels.
Crafty mechanics like inversed gravity, portals, tricycles and movable objects.
Leaderboards in all levels to race against your friends and other iO players.
Bronze, Silver and Gold medals to earn.
Dual Stick controller support.

Media gallery 11 screenshots · 0 videos

Screenshots

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Player activity

Concurrent players over the last 48 hours.

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Price history

Region

Last 30 days ? prices in the selected region?s currency.

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Latest news

All news on Steam ↗

Oct 17, 2018 iO update incoming! Oct 8, 2015 iO is back. Free update LIVE now. Oct 2, 2015 FREE update incoming next week!

System requirements Windows · macOS · Linux

Windows

Minimum

Minimum:

OS *: Windows XP+
Memory: 2 GB RAM
Graphics: DX9 (shader model 2.0) capabilities
DirectX: Version 9.0
Storage: 250 MB available space

macOS

Minimum

Minimum:

OS: OS X 10.6+
Memory: 2 GB RAM
Graphics: DX9 (shader model 2.0) capabilities
Storage: 250 MB available space

Linux

Minimum

Minimum:

OS: Ubuntu 10.10+
Memory: 2 GB RAM
Graphics: DX9 (shader model 2.0) capabilities
Storage: 250 MB available space

Publisher: Gamious
USK rating: 0
Brazilian rating: l
Achievements: 39
Controller support: full
Features: Single-player, Steam Achievements, Full controller support, Steam Trading Cards, Steam Cloud, Stats, Steam Leaderboards, Remote Play on TV, Family Sharing
Languages: English, French, Italian, German, Spanish - Spain, Dutch, Polish, Portuguese - Portugal
Support: [email protected] Support site ↗

Compatibility & accessibility Steam Deck, controllers & access features

Can I Play This?

Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.

Sources fresh

Native Steam builds

Windows: unknown

macOS: unknown

Linux: unknown

Steam Deck

playable

Valve compatibility test

Launcher interaction may require manual input.

Input

Controller support: unknown

Structured language support (8)

Language	Interface	Full audio	Subtitles
English	Yes	No	No
French	Yes	No	No
Italian	Yes	No	No
German	Yes	No	No
Spanish - Spain	Yes	No	No
Dutch	Yes	No	No
Polish	Yes	No	No
Portuguese - Portugal	Yes	No	No

Steam store page fresh · checked 2026-10-04 PCGamingWiki technical notes External link only; SteamIQHQ does not ingest PCGamingWiki content.

More analysis Activity patterns, updates & developer tools

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Game Insights

Buy Verdict

Wait — $4.99.

Not the best time to buy. Price could improve with future sales.

▬ ~42 days until next sale

Value Score

Great Value — 90th percentile.

Price-to-player ratio ranks in the 90th percentile. Priced as Market at $1.24.

▲ Market pricing tier

Genre Benchmarks

Player Count Top 20%

Value Ratio Top 10%

Activity Heatmap

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Developer Analytics

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Frequently Asked Questions

Is iO worth buying right now?

Wait — $4.99. Not the best time to buy. Price could improve with future sales.

When does iO go on sale?

Not the best time to buy. Price could improve with future sales.

Is iO free to play?

iO costs $4.99 on Steam.

What genre is iO?

iO is a Action, Indie, Racing game.

Who developed iO?

iO was developed by Gamious and published by Gamious.

What platforms does iO support?

Available on Steam for Windows, macOS, Linux.

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iO

Features:

Screenshots

Player activity

Price history

Latest news

Windows

Minimum

Recommended

macOS

Minimum

Recommended

Linux

Minimum

Recommended

Can I Play This?

Game Insights

Buy Verdict

Value Score

Genre Benchmarks

Activity Heatmap

Observed Review Intelligence

Review Score Trend

Developer Analytics

Observed Review Topics and Cohorts

Review Score Trends

Review Impact Correlation

Competitive Review Benchmarking

Frequently Asked Questions

Related Games

Update Impact Analysis

Analysis Windows

Player Count Trend

Analysis Insights