"turn-based espionage game" Incognita. The developer is best known for producing Mark of the Ninja and the Shank titles.
In an interview, Klei co-founder Jamie Cheng stated that the game would be procedurally generated, and would have some resemblance to XCOM: Enemy Unknown, except while Firaxis' game is "ten percent information gathering and 90 percent positioning," Incognita will be the reverse. Cheng stated, "The idea behind Incognita is, we want information to be power. We want information to be a very key part of your experience."
The game will be playable during development. "People are gonna be able to play it early while it's still in development (and offer feedback)," explained Cheng. "Don't Starve ended up a way better game because of the community."
Incognita will be a PC/Mac OS game, with iOS and Linux on the horizon.