Strange Attractors
Strange Attractors is a fun and imaginative puzzle game that lets you control the force of gravity using a single button. Yes, you heard that right. All you need to do is press one little button to play the game. Don't think that it's going to be simple or utterly boring though. The game incorporates unique graphics and creative gameplay that will certainly give you enough of a challenge.
It was released a couple of years back to great praises. It has become quite popular and already has a successor, Strange Attractors 2.