Gromril Forge is a Dwarfs military support building in Total War: Warhammer. Gromril is the rarest of ores; no ordinary forge can get anywhere near hot enough to unlock its secrets.
Background
Only the Dwarfs have the lore to shape Gromril. Known to others as star-metal, it is the rarest of all ores, and treasured by the Dwarfs for its superior qualities. Gromril makes the best armour, the sharpest axes and is the most supple material for combining with runes. To unleash its power, a Hold needs a forge of meteoric iron.