Amazon is once again kicking ass with its free app. Yesterday brought Eufloria for free, and today brings The Cave to everyone’s mobile devices. The title is also listed as being compatible on the OUYA upon “buying” it, but we haven’t been able to try that out yet. Given that the game is natively on the OUYA, there’s a chance that the basic Android version may have some issues since it’s not optimized for the system. If you’ve never been able to play the game yet, this a stunning puzzle-platformer that should be played by all who enjoy the genre.