Pyramid of Doom
Published by Adventure International, this text-based adventure game was the eighth in Scott Adams' Adventure series, primarily written by Alvin Files. Files had reverse engineered Adams' Adventure engine, written a new adventure, and submitted it to Adams, who then tweaked it for release as part of the series.
Gameplay involved moving from location to location, picking up any objects found there, and using them somewhere else to unlock puzzles. Commands took the form of verb and noun, e.g. "Take Shovel". Movement from location to location was limited to North, South, East, West, Up and Down.