Upper Reaches of Apshai (TRS-80, Atari 8-bit)
http://darth-azrael.tumblr.com/post/151339503999/upper-reaches-of-apshai-trs-80-atari-8-bit
Upper Reaches of Apshai (TRS-80, Atari 8-bit)
http://darth-azrael.tumblr.com/post/151339503999/upper-reaches-of-apshai-trs-80-atari-8-bit
Advertisement for Protector II, Shamus and Picnic Paranoia for the TRS-80 Color Computer from the October 1983 issue of Color Computer Magazine.
Source: Color Computer Magazine – Issue Number 8 – October 1983
Radio Shack’s Color Computer never seemed to have as much third party support as the other major 8-bit computers of the day. I’m not sure exactly why since Radio Shack supported it for a very long time. I suspect that most CoCo owners tended to get their software through Radio Shack so if it wasn’t sold there it probably didn’t sell nearly as well.
However, there was some third party support, particularly in the early days. This ad from the October 1983 issue of Color Computer Magazine shows three popular games at the time from Synapse. Synapse was primarily an Atari 8-bit developer, later moving on the the Commodore 64 and other systems. Protector II, Shamus and Picnic Paranoia were all available on other 8-bit computers as well. I’m not sure how the CoCo versions compared but the screen shots seem to indicate that they are on par with other versions, at least graphically.
For more on Shamus, see here and for more on Picnic Paranoia, see here.
Source: Color Computer Magazine – Issue Number 11
The TRS-80 Color Computer seemed like the black sheep of the 8-bit world. School’s mostly used Apple IIs, Commodore produced the most successful and popular 8-bit computer of all time with the Commodore 64 and Atari was there at the beginning with the best games playing computer of its time (until the Commodore 64 came along anyway). The TRS-80 Color Computer was also there early on and was commercially available almost as long as the Commodore 64. However, outside of Radio Shack, it seems like you never heard anything about it. While Radio Shack supported it well for a long time, third party support was weaker than it was for most other 8-bit computers at the time. It was barely covered in multi-format magazines and dedicated magazines were few and far between, however, Color Computer Magazine was one such magazine.
The January 1984 issue of Color Computer Magazine included the following:

…and more!