Somebody brought to my attention that I miss typed the Course ID for my recreation of Downland. I have corrected it on both the OP and Screenshots posts.
Downland (TRS-80 CoCo2)
Course ID: YDQ-723-X5G
While on the subject of Dowland, I edited all of the Downland screenshots into a "Map" with each Chamber's connection points lined up alongside a vintage map of the original Downland from CoCopedia ( http://www.cocopedia.com/wiki/index.php/Map_of_Downland ).