
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!

Complete all trial levels

Unlock the full game

Play 10 levels

Play 25 levels

Play 50 levels

Play 75 levels

Play 100 levels

Play 125 levels
Minimum OS *: Windows XP+ Memory: 2 GB RAM Graphics: DX9 (shader model 2.0) capabilities DirectX: Version 9.0 Storage: 250 MB available space Recommended OS *: Windows XP+ Memory: 2 GB RAM Graphics: DX9 (shader model 2.0) capabilities DirectX: Version 9.0 Storage: 500 MB available space
Minimum OS: OS X 10.6+ Memory: 2 GB RAM Graphics: DX9 (shader model 2.0) capabilities Storage: 250 MB available space Recommended OS: OS X 10.6+ Memory: 2 GB RAM Graphics: DX9 (shader model 2.0) capabilities Storage: 500 MB available space
Minimum OS: Ubuntu 10.10+ Memory: 2 GB RAM Graphics: DX9 (shader model 2.0) capabilities Storage: 250 MB available space Recommended OS: Ubuntu 10.10+ Memory: 2 GB RAM Graphics: DX9 (shader model 2.0) capabilities Storage: 500 MB available space