The Windows edition of Square Enix's puzzle game Quantum Conundrum is now available via digital distribution, offering the first game designed by Kim Swift since her huge success with Valve's Portal. The game is on GameStop PC Downloads and Steam, with the latter also offering a season pass that adds the soundtrack and two upcoming DLC packs. For those interested in the console versions, GameInformer reports the game will arrive on PSN on July 10th and XBLA on July 11th. Presumably an embargo just lifted, because there are hot-off-the-presses (or the internet equivalent thereof) reviews of Quantum Conundrum on Computer and Video Games, Digital Spy, GameInformer, GameSpy, IGN Video, Kotaku, PCMag.com, Rock, Paper, Shotgun, VentureBeat, The Verge, and Wired.com. There is also a snippet with Kim Swift about games as toys on Wired.com, a Kim Swift profile on IGN, and a conversation with her about the new game's present and future on Rock, Paper, Shotgun. Finally, here's the description of the game:

When you, as a young boy, are dropped off to visit your uncle, you notice something’s wrong. First, he’s not there to greet you. Second, there’s the explosion that happened right as you arrived. And third, the house seems to be even weirder than you remembered it. Now, your job is to find—and ultimately rescue—your uncle, by using his newest invention, the Interdimensional Shift Device (or IDS), to switch between dimensions and solve puzzles. That sofa too heavy to move? There’s a dimension for that! Switch to Fluffy Dimension and that sofa is now light as a feather. Need to get up to a high ledge? There’s a dimension for that! Just switch to Anti-Gravity Dimension and things begin to float upward. Need to make things heavier? There’s a dimension for th—well, you get the idea. Switch dimensions in real time, work your way through the crazy complex mansion wings and rescue your uncle!