I made a small adventure game, based on art assets off an older game of mine (https://github.com/torleif/Dystopian-Future). There's not too much to it right now, just a single level and no enemies/puzzles.
(http://i.imgur.com/91C54No.png)
(http://i.imgur.com/30x3Gw5.png)
(http://i.imgur.com/KRYolDZ.png)
(http://i.imgur.com/31g2I8f.png)
(http://i.imgur.com/7POiWUM.png)
(http://i.imgur.com/hGy04Hc.png)
(http://i.imgur.com/1ksnt2z.png)
(http://i.imgur.com/sUGSinM.png)
(http://i.imgur.com/IcoPciz.png)
(http://i.imgur.com/OkCCZZF.png)
(http://i.imgur.com/fpeglMA.png)
I might work on it further, though I'm not too sure what mechanics there should be. I was thinking about making an adventure game similar to Knytt, but I feel that would be in poor taste blatantly plagiarising niffla's concept. The other idea was an action game, but there's way too many other action 2d games out there to stand out. (the game the other art assets came from was an action game)
There are OS X and Windows builds available:
Mac (27 megs) (https://mega.co.nz/#!rdhQib5J!GeNoKRTi6m2WmWCFVvXvR3AjHDtkVdnAjqQx1RHQa9Q)
PC (25 megs) (https://mega.co.nz/#!qQgxDLxS!PM2R6ydUcLK269J947oNvhLWAwcC5_YayHcbq-2j1ug)