Dark warriors are found in the Dark Warriors' Fortress, which is a castle in level 18 to 21 Wilderness north-west of Edgeville. The dark warriors are inside the castle which is surrounded by a moat. They are usually more annoying than an actual threat to players, and have higher defence than their combat level suggests. Dark warriors are known to have the unique but occasional drop of black maces. They are aggressive regardless of a player's level, and leaving the fortress, logging into a different world or being taken away by a random event will cause them to be aggressive again.
Dark warriors have been in their castle in the Wilderness since Runescape Classic, yet there has been no quest objective involving them as of yet.
Unlike the Black Knights, dark warriors are yet to receive a graphical update to their armour. They seem to be equipped with a dirty version of an iron helm, iron platebody, iron platelegs, and leather gloves and boots.