Peter Molyneux's first creation since Lionhead is now live on the App Store, presenting gamers with a humungous cube composed of billions of tiny cubelets. Curiosity's virtual block needs to be stripped down layer by layer through collective effort, to reach the center and reveal "something life-challengingly amazing". There's no sign of the expected tear-inducing paid DLC; instead, you pay for power-ups using coins earned by tapping away at the game. 100 of those coins will let you see the stats screen, while 3 billion will reward you with the Diamond Chisel -- the ultimate tool for block-whacking. Based on our brief time at the grindstone, it's safe to say the game's impact won't be as profound as that of the other Curiosity, but its social aspects have some interesting potential -- not least using Facebook to locate friends who are playing and compare each other's progress. The game is available free at the App Store if you'd like to leave your mark.