Terraria Mods Wiki
Warhammer of Grognak
  • Warhammer of Grognak item sprite
Stack digit 1.png
Damage18 (Melee)
Knockback7 (Strong)
Critical chance4%
Use time20 (Very fast)
Tooltip'Warhammer of the legendary Grognak'
Does more damage as you kill bosses throughout the game
Right click to unleash a mighty shockwave attack
Does not function as a tool hammer

The Warhammer of Grognak is a melee Legendary Weapon. It fires a beam projectile that does not pierce on use. Right clicking will cause the player to jump high into the air and spin with the hammer. Upon hitting the ground after the spinning stops, a large shockwave that travels along the ground will be shot forward. This shockwave initially deals 10 times damage but it shrinks in size and power over distance; it can pierce infinitely. When the shockwave attack is used while upside-down (as a result of a Gravitation Potion), orb projectiles will fall from the ceiling instead; they can only pierce twice.

Damage Bonuses[]

Boss Progression Damage
None 18
King Slime 22
Eye of Cthulhu 27
Eater of Worlds/Brain of Cthulhu 31
Queen Bee 36
Skeletron 40
Grand Cactus Worm 45
Wall of Flesh 54
The Destroyer 72
The Twins 90
Skeletron Prime 108
Plantera 126
Golem 144
Duke Fishron 162
Lunatic Cultist 180
Nebula Pillar 198
Solar Pillar 216
Vortex Pillar 234
Stardust Pillar 252
Moon Lord 360
Jumbo Cactuar 630
SA-X 900
Gilgamesh and Enkidu 1170



ResultIngredientsCrafting station
Warhammer of GrognakWarhammer of Grognak
Joostmod/Shrine of LegendsShrine of Legends


  • 0.8: Reduced attack speed.
  • 0.7.2: Now crafted at the Shrine of Legends.
  • Introduced.

Legendary Weapons
Joostmod/Warhammer of GrognakWarhammer of Grognak • Joostmod/Boook's Bullet HellBoook's Bullet Hell • Joostmod/Uncle Carius's Fishing PoleUncle Carius's Fishing Pole • Joostmod/Staff of DavidStaff of David • Joostmod/Larkus's TomeLarkus's Tome • Joostmod/Gnunderson's GloveGnunderson's Glove