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!
Arcade & IndieComplete 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
Play 150 levels
Win a gold medal
Win 10 bronze medals
Win 10 silver medals
Win 10 gold medals
Complete level pack 1
Complete level pack 2
Complete level pack 3
Complete level pack 4
Complete level pack 5
Complete level pack 6
Collect 25 medals
Collect 50 medals
Collect 75 medals
Collect 100 medals
Collect 125 medals
Collect at least a Bronze medal in 150 levels
Collect at least a Silver medal in 150 levels
Collect at least a Gold medal in 150 levels
Expand your ball 100 times
Expand your ball 1000 times
Expand your ball 10000 times
Shrink your ball 100 times
Shrink your ball 1000 times
Shrink your ball 10000 times
Collect a medal in all Impeccaball levels
Collect a medal in all Incrediball levels
Collect a medal in all Impossiball levels
Complete all Impeccaball levels
Complete all Incrediball levels
Complete all Impossiball levels