Two of the releases, "Upper Reaches of Apshai" and "Curse of Ra", were add-ons to "Temple of Apshai" which required the original program to run. The level design and room descriptions for both were created by Tim Bird, Mark Madrid and Andrew Martin. "Upper Reaches of Apshai" contains four new dungeon levels for beginning characters, and conveys a more humorous tone with suburban environments like a vegetable garden and enemies like killer tomatoes. "Curse of Ra" is set in ancient Egypt and has higher difficulty. It also consists of four dungeon levels, with 179 rooms total.