Mazes and Monsters: Retro Clone
There have been a lot of open-source old-school game clones: OSRIC, Labyrinth Lord, etc, letting people legally produce content compatible with older games. One game that has been sadly neglected is Mazes and Monsters. Who among us doesn't have fond childhood memories of spelunking in costume until our friend Tom Hanks went crazy?
I'm writing a playable Mazes and Monsters retro-clone by watching Rona Jaffe's Mazes and Monsters and inferring the rules from dialogue, screenshots of character sheets, and other in-movie evidence, as well as a lot of inference, ranging from well-founded to highly questionable.