Frictional Games is now offering preorders of SOMA, the upcoming submerged sci-fi horror game for Windows, OS X, and Linux. The game is expected on September 22nd, and in the meantime, pre-purchases are now up on GOG.com and Steam where they list the game's system requirements (thanks MajorD). Here's a new video about composer Mikko Tarmia's score for the game, and here's the pitch:

Enter the world of SOMA and face horrors buried deep beneath the ocean waves. Delve through locked terminals and secret documents to uncover the truth behind the chaos. Seek out the last remaining inhabitants and take part in the events that will ultimately shape the fate of the station. But be careful, danger lurks in every corner: corrupted humans, twisted creatures, insane robots, and even an inscrutable omnipresent A.I.

You will need to figure out how to deal with each one of them. Just remember there’s no fighting back, either you outsmart your enemies or you get ready to run.