Trek lives in every OpenBSD install. And OFC with any Basic interpreter running the original game.
I translated a Zmachine port into Spanish, too. ZTrek.
The game is not at CAAD because they woudn't accept as it a text adventure game.
https://www.ifarchive.org/if-archive/games/zcode/ztrek.z5 English version.
For instance: frotz ztrek.z5
Or Winfrotz under Windows, or Lectrote for any OS.
By pressing '9' you get the online help, in any language. Have fun.