Forgotten Realms

Dis, the Iron City, is a red-hot fortress ruled by Dispater. Its shifting streets and buildings create a lethal maze, while extreme heat and magic resistance pose deadly challenges to intruders. The city serves as a weapons hub for the Blood War, surrounded by barren plains and iron mountains that warp space, complicating travel. A skull-paved road leads to iron gates, where chaos reigns within. The smoky sky and fierce winds add to the oppressive atmosphere. Inside, adventurers encounter Dispater's shifting Iron Tower, the Fetters for outsiders, and the deceptive Garden of Delights. The Styx serves as the primary route to Minauros below, with portals from Avernus, one guarded by Tiamat.