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  • SDFMG.png
Stack digit 1.png
TypeWeaponCrafting material
Damage100 Ranged
Knockback2.75 (Very Weak)
Critical chance19%
Use time2 Insanely Fast
Tooltip50% chance to save ammo
'It came from the edge of Terraria'
RarityRarity Level: 14
Sell 28 Gold Coin.png
Research1 required
Projectile created
Fishron Rocket
Fishron Rocket

The SDFMG (or Space Duke Fishron Machine Gun) is a craftable post-Moon Lord gun and an upgrade to the S.D.M.G. It rapidly fires bullets with a 20% chance to instead fire a water rocket that homes in on enemies.

Its best modifier is Unreal. However, the weapon's firing speed will not be affected.



Crafting Station
Cosmic AnvilCosmic Anvil
Fetid EmesisFetid Emesis1
Cosmilite BarCosmilite Bar8
Endothermic EnergyEndothermic Energy20

Used in


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
  • No longer uses 10 Sea Prisms, 10 Depth Cells, 10 Lumenyl, or 5 Tenebris in its recipe.
  • Decreased sell price from 36 Gold Coin to 28 Gold Coin.
  • Now uses 10 Sea Prisms in its recipe.
    • Nerfed damage from 200 to 100.
    • Now uses 8 Cosmilite Bars and 20 Endothermic Energy in its recipe instead of 5 Cosmilite Bars and 1 Ascendant Spirit Essence.
    • Now requires a Cosmic Anvil to craft instead of a Draedon's Forge.
  • Now uses 5 Cosmilite Bars and 1 Ascendant Spirit Essence in its recipe instead of 4 Cosmilite Bars and 4 Phantoplasm.
  • Now uses Fetid Emesis in its recipe instead of Shrimpy Truffle.
  • Nerfed damage from 250 to 200, and critical strike chance from 16% to 15%.
    • Rocket explosions now pierce infinitely and grant 10 local immunity frames.
    • Decreased the size of explosions.
    • Buffed use animation from 4 to 2.
    • Projectiles now make sounds upon hitting blocks.
  • Explosions now deal ranged damage.
  • Now uses 10 Depth Cells, 10 Lumenyl, and 5 Tenebris in its recipe.
  • Now uses 5 Phantoplasm in its recipe.
  • Now requires a Draedon's Forge to craft instead of an Ancient Manipulator.
    • Nerfed damage from 137 to 129.
    • Now requires an Ancient Manipulator to craft instead of a Hardmode Anvil.