Cyto (formerly Cyto's Puzzle Adventure) is a casual physics based puzzle mobile game developed by Ukrainian game development studio Room 8.

The game was first released on the iOS App Store on February 21, 2013.

Cyto has a gelatinous envelope that deforms and stretches when player touches it.

Eli Cymet of Toucharcade said that "it'll be a delight for your left and right brain alike".

[3] Alberto González of Vandal.net stated: "it's addictive and accessible, two good reasons to give it a try".