Sorvi is a game making app on iOS and downloadable now on App Store.
With Sorvi users can make, remix, share and play user made games on an endless swipeable feed. It has a visual 2D drag & drop editor for games with built-in physics, animator, sprite editor, music synth/sequencer and quite a robust rules system. It's free to download and doesn't require even registration unless you want to publish games of course.
