Mythical Dungeon Raider is an achievement that is unlocked by completing all three parts of the Assault Challenge Mission Pack on Nightmare difficulty (can not be earned without the DLC).
Related Achievements[]
- Dungeon Raider (Campaign) - Completed all levels (from The Deeper Well to Glitterhelm Caverns) on at least Hard difficulty.
- Dungeon Raider (Assault Mission Pack) - Completed all three parts of the Assault Challenge Mission Pack on any difficulty (can not be earned without the DLC).