Lanternsong makes games for iPhone. They make music as you play them. No score, no timer, no way to lose. Wherever you get to is a fine place to be.

A four by four sliding puzzle. Matching colors cancel out and leave a note behind. Empty the board and you keep a light.

Pull buses out of a crowded depot and let the queue board them. Every board is proved solvable before it ships.

Join cut cables until current can run. Close a loop and a spark goes round it, playing the notes you just made.

Set rings turning at different rates until, between them, they land on exactly the beats you were given.

Six lanes, creatures walking in down all of them, and every shot has to land on the beat.