After Airtight Games' last project, Dark Void, failed to succeed with critics and at retail, the studio crept back into relative quiet for the majority of 2010. Aside from a job listing popping up late in the year for "several AAA titles," and the high-profile hire of Portal lead Kim Swift just before Dark Void's launch, the studio kept mum all the way until this past summer.

Just before PAX, however, Japanese publisher Square Enix teased a big reveal for Swift's promised game. Days later, Quantum Conundrum was announced -- another first-person puzzler -- leaving us to wonder what else the studio might be working on. "There are currently two projects at Airtight: ours, and another unannounced project," Swift told me during a pre-New York Comic Con preview for Square's titles. "I can't speak to what the game is," she added (unsurprisingly).

The Airtight Games site offers only a bit more assistance in divining the studio's other project, calling it, "another ambitious AAA title in a genre that is both unique and refreshingly unexplored," and teasing the image above. Swift did tell me that 16 folks at Airtight out of approximately 50 are currently head-down on Quantum Conundrum, leaving a sizable team for other things.

And those 35 or so people have had plenty of time to get started, if development of the studio's other, "mid-sized" project is any indication. "We've technically been working on [Quantum Conundrum] for a year, but we didn't really go into production until maybe like, six, seven months ago. Not long," Swift explained with a laugh. "You'd be surprised at how many things 16 folks can make."

AG's official site also promises "more news and announcements in the near future," so perhaps the studio is ready to fully awake from its year-long silence.

This article was originally published on Joystiq.