This choicescript game was recommended to me, and I really enjoyed it. It is free, unlike many "Choice of" games, and well-developed. You are a dragon, and like other Choice of games, you have a variety of stats (honor/cunning, finesse/brutality, etc.)
The story was written well, with a good swords and sorcery vibe that I've really missed among IF games. Dragons, wizards, paladins, demons, goblins, all behaving like a D&D game instead of the usual introspective deconstructions popular in IF.
I really enjoyed crafting a cunning finesse dragon, although I died once and got my butt kicked another time. The delayed effect of the choices makes the puzzles significant. I had heard it was hard to get a mate, and indeed I was not able to.
I enjoyed the goblin NPC. If Choice of Games had been more well-known in the IF community in 2010, I feel this would have been nominated for some awards.