The third "Humble Bundle" was launched just a few hours ago. This time it features three well-known games by Finnish Frozenbyte Inc.: Trine, Shadowgrounds, and Shadowgrounds: Survivor. Games are available for Windows, Linux and Mac so operating system isn't going to be a problem. Also as a bonus you get two Windows only games: Splot and Jack Claw.
And what is so special about these Humble Bundles? You can set the price yourself! You can also donate part of the money for charity.
Bundle includes World of Goo, Aquaria, Gish, Lugaru HD and Penumbra OVERTURE. Games are DRM free and available for Windows, Linux and Mac. So pay what you want and get games worth $80 bought separately. Also part of the funds go to charity. (If you decide so.) The bundle is available until May 11.