How Frictional Games Does Frightening Without Fighting on Gamasutra is a Halloween-appropriate interview talking with the folks behind the horror-themed Penumbra series. They discuss the way the Penumbra games unfolded and the way the episodic format of the series shifted as they changed publishers. They also discuss the studios' next project that they recently teased, a more action-oriented game called Unknown, though this means more action-oriented for them, but it does not make it an action game: "Now this is not necessarily bad, and we still want to have some more complex puzzles in Unknown too -- but we want the base of the gameplay to consist of action.... without adding tons of pickaxes, shotguns and roaming zombies."