Colossal Cave (or Adventure) was the first text adventure game.
Its text was translated into Lojban by Nick Nicholas in 1991. Robin Lee Powell implemented it in Inform in 2002, thus outputting a z-machine interpretable file. He also touched up the text a bit, as it was written before the Great Rafsi Reallocation of 1993. Its Lojban name is la nuntalyli'u. You'll need a Machine interpreter to run it.
See also nuntalyli'u mini-dictionary.