Also, Tristam Island for the Z-Machine:

https://github.com/hlabrand/tristam-island

You can just transcript the feeliest to plain text. If you have an Inform6 compiler nearby, just compile the game with the 'big' flags to get the "complete" Z3 version. It has the same text as the v5 one, and it will run much faster under a 8088/8086.

For a Zorkian adventure, just get Spiritwrak.