Treasure Vaults of the Twilight Dragon is a game that fills two roles – it is a module for OD&D and other classic fantasy RPG systems, as well as being a wargame scenario designed for those rules.
The structure of the module is inspired by wargame scenarios, complete with orders of battle, tactical information, and the dungeon as a theater of operations. Orcs and goblins are not simply given stat blocks but are organized into companies and regiments. Players take on the role of a specialist (in either combat, magic, blessings, or reconnaissance) in a defined military organization of their own, ready to hack and slash their way through a massive dungeon in search of the Dragon's treasure hoard!