After a countdown on the "nextfrictionalgame" website, Frictional Games has revealed its next project, Soma. The project has not been fully revealed, however, and all the information about the game comes from the cryptic website somasystems.org. The website appears to be a viral marketing campaign for the game, with a series of "case files" that might be revealed in the near future, or as part of an ARG.
Only one case file is currently available, titled "Vivarium." The link on the webpage leads to a description of the Vivarium case, which deals with a strange machine found during a salvage operation. The machine was set to be disassembled, but was accidentally switched on during the process. An examination of the machine is depicted in a live-action teaser trailer also found on the site:
Judging from the video, the game (presumably titled Soma?) will be another horror game. Frictional is now well-known for Amnesia: The Dark Descent and its sequel, Amnesia: A Machine For Pigs. Those games were set in a more classic, turn-of-the-20th-century horror setting. Soma looks to be bringing the helpless survival horror of the Amnesia games to a science fiction setting - a move that could bring more people into the genre.