D&D Ironman is a variant of Dungeons of Dragons 3.5 which harkens back to an older age of D&D. Players have little choice about their character and life is harsh.

Character creation involves rolling 3d6, assigned to ability scores in the order that they are rolled. Equipment is limited and hit points are less than the standard. Random character creation is available for a fast start

D&D Ironman is a variant designed for one-offs or very short, non-serious campaigns.