Ludum Dare 15 is over!  That makes another game on this site. In “Knight of the Cave Dragon”, you play Sir Camus, a knight on a quest to slay a dragon.  If that’s not original enough, then consider this:  The dragon lives in a cave!  Anyhow, it has some fun elements having to do with light and darkness.  No full page yet, so you can grab the LD version as linked from the LD page, or get the latest version here.