Fourteen Thread

Fourteen is a game in which you try to escape a fortress by solving its puzzles. The magic number is fourteen.
The art was made by the artists of RLTiles and Dungeon Crawl Stone Soup (http://opengameart.org/content/dungeon-crawl-32x32-tiles).
The music was made by Alexandr Zhelanov (http://opengameart.org/content/mystical-theme).

The game can be found at Gamejolt.com.

The concept is baseline but it could work very well if you change artist and redo the visuals, plus convert to hand-helds if not already.