The Thieves' World boxed set is a role-playing game setting, featuring contributions from noted Thieves World novelists such as Poul Anderson and Robert Asprin.

The boxed set includes the following items:

• The Player's Guide to Sanctuary
• The Game Master's Guide to Sanctuary
• Personalities of Sanctuary
• fold-out brown-and-white maps of Sanctuary, the Maze, and the Maze Underground