it's not twine, but for text adventures i've got to recommend The Baron

[bioni...@gmail.com]

You can get it here: http://mirror.ifarchive.org/if-archive/games/springthing/2006/baron.zip

And you'll need a reader like Frotz to play it:
http://mirror.ifarchive.org/if-archive/infocom/interpreters/frotz/WindowsFrotzInstaller.exe

Trigger warning for some in-depth exploration of sexual assault. I don't want to say much more about it, because I think this game's pretty amazing.