Kim Swift, one of the minds behind the original Portal, left Valve to pursue new video game opportunities, the first being Quantum Conundrum. At first glance it looks similar to Portal in that it's a series of rooms filled with puzzles you need to solve to progress to the next room. One of the twists involves your ability to enter different dimensions, and each dimension changes the environment around you. For example, in the Fluffy Dimension, objects are ten times lighter than normal. It's a quirky, brain-bending game that isn't likely to see the success or attention Portal received, but it's definitely worth your time.
This is the only game on the list that isn't out yet—Deadlight releases on August 1st—but because of its 2.5D post-apocalyptic horror nature, this game will probably get overlooked by many when it comes out next month. So far the game looks incredible. It's haunting and atmospheric, and the puzzles look pretty challenging. The zombies are certainly a part of it, but they're not the driving force of the horrors you'll come across during the game.
At this point, pretty much anything Suda 51 makes is going to be overlooked. He's known for his quirky games that attract cult followings, but go largely unheard of by the mass gaming audience. His work includes Killer7 and No More Heroes, and more recently a collaborative effort between him, Shinji Mikami (Resident Evil creator), and Akira Yamaoka (Silent Hill composer) birthed the fantastic Shadows of the Damned and Lollipop Chainsaw. Suda 51 games are always lean heavily on the raunchy and the bizarre, and you're not likely to see anything quite as spectacular as a chainsaw-wielding cheerleader with a severed head for a boyfriend and a penchant for sawing zombies in half.