Humble Indie Bundle 6 has been launched with 6 amazing cross platform games. The collection of games this time is quite great specially with titles like Torchlight and Dustforce.
Other four games in the bundle are Rochard, Shatter, S.P.A.Z. and Vessel.
Torchlight is my personal favorite and its great that the game finally came to Linux. Torchlight is made using open source and cross platform OGRE game engine but sadly it was not available on Linux until now.
Another good thing about this bundle is that Unity engine is making its debut on Linux platform with Rochard.
Grab the bundle from http://www.humblebundle.com/ (Dustforce unlocks if you beat the average price).