The Forge of Fury is a dungeon crawl, a site-based adventure describing the stronghold of Khundrukar. The great dwarven smith Durgeddin the Black founded the secret stronghold within a great underground cavern system two hundred years ago when he and his clan were driven from his home by a horde of orcs and trolls. The orcs discovered the location of Khundrukar a century ago when they captured one of Durgeddin's clansmen, and raised a great army that stormed the stronghold and slew the dwarves there, allowing its five levels to fall into ruins as goblins, orcs, and other monsters used the place as a base. Legends tell of the extraordinary blades which Durgeddin forged in anger, enticing the player characters to come to the ruins of Khundrukar in search of these weapons.
A reviewer from Pyramid commented that the "first few pages are very good at walking new Dungeon Masters through the steps needed to properly prepare for the adventure", also noting that "like the Sunless Citadel, the main focus is on the adventure." Conversely, an RPGnet review criticized the lack of hints in the package, but praised the adventure as following "in the mold of the great classics of the first edition".
The Forge of Fury was ranked as the 12th greatest Dungeons & Dragons adventure of all time by Dungeon magazine in 2004, on the 30th anniversary of the original Dungeons & Dragons game.
Dungeon Master for Dummies lists The Forge of Fury as one of the ten best adventures from the 3rd edition.[not in citation given]