After 2010's disappointing Dark Void, we'd nearly forgotten that Airtight Games had hired Portal Creative Director Kim Swift to lead development on a "new, unnamed project." Square Enix has rekindled our interest, announcing that it's picked up publishing rights to the game and will reveal the "top-secret joint project" at PAX this Saturday (7pm in the Pegasus Room for those of you in attendance).

The only information we can glean from the announcement is that it's "an incredibly fascinating and quirky game" so ... take that for what it's worth. Airtight Games' site says that while it's working on another "ambitious AAA title" it's also working on "a new mid-sized game with all kinds of physical possibilities."