Here is a game I recently finished: Nuclear Fire at Castle Treachery
I was trying to use Twine to make something more game-like, rather than a branching narrative. Let me know what you think and please report any bugs or typos. Below is my synopsis from the Interactive Fiction Database. You can check out the listing here
In the Millennium of Strife, the Sun has burnt out and Earth is frozen. To save your tribe, you must enter Castle Treachery, find the Nuclear Fire, and rekindle the Sun.
Nuclear Fire at Castle Treachery is a game of adventure and exploration. Search the maze-like chambers of Castle Treachery for weapons, magic items, and treasures. Defeat the monstrous Manticore Amoeba and steal the Nuclear Fire.
*2 selectable characters.
*An inventory system.
*A secret ending.