Invisible, Inc.

Invisible, Inc, is a turn-based, tactical stealth & espionage strategy game with a stylish Sci-Fi noir flair from Klei Entertainment, the makers of Don't Starve. Keep in mind that there might be some annoying and pesky guards around the corner, super laser beams blocking your way, highly intelligent AI, Big Brother on Overwatch, and locked doors between you and your target. So put together a plan, and some careful movement and deceptive trickery, and you just might be able to survive and escape with your trophy in tow.

Note that Invisible, Inc. is currently in Early Access, which means that they are still in the beginning stages of development. At this time, they have the core mechanic of turn-based espionage, but the major features and content of the game are still being implemented. They expect the game to change significantly as they test and release new updates, and as much as they try to keep them out, they're expecting bugs along the way. And remember; Invisible, Inc isn't about clearing your opponent from the board.