Blockchain: The Game

In this simple-seeming game of dropping blocks, the player combines colors to eliminate stacks of blocks before running out of space. Described as a combination of "Tetris" and "2048", Blockchain was first programmed on the Apple II as a low-resolution puzzler, but now comes to mobile on iOS. Don't let the bright colors and simple shapes fool you, though: the difficulty on this game ramps up quickly, and doesn't quit until it's GAME OVER.