Glass

This is one of my two favorite Emily Short games (the other being Floatpoint). In this game, a re-telling of Cinderella, you play an observer in the trying-on-of-shoes portion of the story. You can take no actions, but you can introduce topics in the conversation to steer you to one of six possible endings.

This game has some memorable moments and strong dialogue. It is fun to replay over and over again, and does not feel tedious in doing so.

Short has provided the source code for this game, which is entertaining in and of itself. If you haven't seen Inform code before, it consists of mostly whole sentences, and is much more understandable than C++, Python, Perl, etc. So even if you are not a programmer, you can understand a lot of it.