The talk show host and television personality had a hand in conceiving and designing brand new iOS game Catcha Catcha Aliens.
Ross also voices a character in the game, alongside fellow broadcaster Stephen Fry.
Described as a "fun game of skill and endurance", Catcha Catcha Aliens features three planets, 45 levels and countless mini challenges.
The autorunner game, where the aim is to clear planets of aliens, will receive new levels and characters in future updates.
Compatible with the iPhone and iPad, it can be purchased from the App Store for £0.69.
Ross and Fry appeared together on a recent episode of Gadget Man, where the duo road tested some new motorised scooters. They also both voiced characters in Fable 3.
A keen gamer, Jonathan Ross is a big fan of Nintendo and praised Portal 2 after this year's BAFTA win.
Watch the video with Jonathan Ross and Valve at the BAFTA Video Game Awards 2012 below: