Color-Trek is one of many text-based Star Trek simulator type games that the Coco (and many other home computers) had in the late 1970's and early 1980's. While I am not sure, I believe that this version is the one from Spectral Associates.
Title: Color-Trek
Author: ???
Publisher: ??? (Spectral Associates)
Released: ??? (1982?)
Requires: Color Computer 1,2,3, 16K RAM, cassette or disk.