Unbelievable, but true: Dead Island is available right now on Steam for Linux (but unfortunately not in Germany)!
If you already own the Windows-Version of the game in your library, you can start immediately your Download for the Linux-Version.
Update: you can download the game, but you get an "missing executable" error right on the start. It can only be days, until this is fixed. =)
And here goes another public Beta of The Witcher 2 for Linux on Steam!
Changes are (https://github.com/KillaW0lf04/The-Witcher-2-Issues):
14 Aug 2014 15:59 BST
Public Beta 4 - buildID 355503
This contains the following:
Blinding Dark, an Adventure-Horror-Game played in first person is now available for Linux on Steam.
Blinding Dark is a First Person Adventure horror game.
Complete puzzles, collect items and power-ups, fight enemies and do your best to manage the very thin resources you have at your disposal to uncover terrible secrets.
Victory at Sea, a real-time-strategy (RTS) game, has been released on Steam for Linux.
Engage in epic RTS warfare across 3 huge campaigns as well as other battle modes. Create your own fleet of ships, pick your side and enter into World War II naval combat on a global scale.