Awesome - thanks for doing that and sharing it! If you're focusing on genuine Infocom (or Activision?) games that are playable, there are a couple you can add to the list of games that will work on the Model III:This is great; thanks for the update to your Z-code interpreter. I have updated the disk image (Infocom3.zip) at the link in my message above to include this new release of M3ZVM.
Border Zone
Zork: The Undiscovered Underground
A few of the incomplete games will also play on the model 3 (e.g. Restaurant at the End of the Universe), as well as most of Shogun, and also the samplers.
For more fun, the infamous unreleased German translation of Zork 1 also works.
I'm also thinking about creating a TRS-80 specific list of which other post-infocom games are recommended to play. Would those be of interest to add to another partition?