Action-adventure game Outcast: Second Contact is free for a limited time through the Humble Store. The game normally costs 34.99 euro but for the next 48 hours you can get it for free.
To get the game, just go to the Outcast: Second Contact page on the Humble Store, and click "Get the Game". Once you get the game, it will be yours forever. The offer ends on Saturday, November 24 at 10 a.m. PT. But be careful, because the game cannot be downloaded after November 29.