Timeslip (2010)

Originally a Playstation Yaroze game that was released on an Official Playstation Magazine cover disk but has been updated with HD graphics and a new soundtrack for the Xbox and PC re-release. The game features a time travelling snail who is caught in a loop in time. Every 30 seconds he is thrown back in time to encounter earlier versions of himself. While the earlier versions can help by opening doors they must also be avoided as colliding with one will cause a paradox.