I've been told they are aiming to release the Linux version before the end of December. The haven't officially announced it anywhere else, just in case something goes wrong. I like their honesty!
Have a look at their trailer:
About the game
As the sole survivor of the crash of a long-haul spaceship, you find yourself trapped within its falling apart remainings, struggling to maintain the vital functions of the ship and coping with your own survival.
Explore, salvage, study and make a good use of the different modules of the ship, and try to survive as long as possible.
Inspired by our love for science-fiction classics and the survival genre, Drift Into Eternity presents you with a unique and difficult survival experience in first person view. You'll have to learn quick to take advantage of the slightest item if you want to overcome the many dangers threatening the ship and your life.