The Medieval theme came about when id Software decided Aztec levels were not the way to go, due primarily to American McGee not being inspired by them. They were in turn going to be replaced with idBase textures when John Carmack decided that players would not be comfortable in a Medieval setting, but were retained due to the developers not wanting to overhaul months of design once again.
- Elder World - Brown Wood / Brown Stone
- Terracotta - Bricks / Red Clay
- Wizard - Blue Metal / Grey or Green Stone