To Preserve Quandic was probably the largest graphical adventure game done on the Coco at the time of it's release. Taking two full disks, it was larger than both Sands of Egypt and Dallas Quest, which preceded it. The game was quite extensive in locations, and the basic premise was to preserve the pacifistic Quandic race, who had advanced technology like time machines. The game made extensive use of the rarer artifact colors, of which the above screenshots finally do it justice, thanks to the advancements in MESS 37b11 and higher.
Title: To Preserve Quandic
Author: David Karam (Suspense Software)
Publisher: Prickly-Pear Software
Released: 1984
Requires: Color Computer 1,2,3, 32K RAM, disk only.