Popular iOS puzzler and Tetris follow-up Marbly isn't doing too bad on the App Store, having been played 3 million times by 300,000 players in the last year or so.
The newest update adds 1000+ new puzzles to the fold in the form of daily updates to keep things fresh. Along with the 200 original puzzles by Alexey Pajitnov, creator of Tetris, there are also five types of challenges to engage in to keep that walnut rattling around in your head. I mean, to keep your mind sharp.
Marbly's massive update goes live on May 1, so there's plenty of time left to sort out when and where you'll get your puzzle on. And sorry, Android users, it looks like this one is strictly for iOS. Someday. Download the game here if you haven't already, and get your puzzle on.