My participation for LD#28, with the theme: You Only Get One. Uses expressjs & bookshelfjs for the back end, and phaser.io for the front end.
Tiles in the public/img/tiles folder is from http://blog.skab.fr
Tilesheets: Taken from the nice work of http://opengameart.org/users/jerom:
http://opengameart.org/content/16x16-fantasy-tileset
http://opengameart.org/content/32x32-fantasy-tileset
Turns out I've ran out of time. Haven't done any of the backed stuff yet.