Surge Driver

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Surge Driver
  • Surge Driver.png
Stack digit 1.png
Damage156 Ranged
Knockback8 (Very Strong)
Critical chance4%
Use time28 Slow
Velocity22 effective
TooltipPress Left Click to release a laser ray that explodes on collision
Press Right Click to release a barrage of laser beams that release homing energy on enemy hits
Inflicts DebuffMiracle BlightMiracle Blight
100% chance

Debuff duration5 seconds (Energy Beam, Large Explosion)
Debuff tooltipExotic resonance shreds your corporeal form
RarityRarity Level: 15
Sell 48 Gold Coin.png
Research1 required
Projectiles created
Prism Laser
Prism Laser
Prism Explosion Large
Large Prism Explosion
Laser (projectile)
Prism Rocket
Exo Comet
Prism Comet
Prism Explosion Small
Small Prism Explosion
Surge Driver Holdout.png
Surge Driver Holdout
Dropped by
Exo Mechs (Artemis and Apollo)
XB-∞ Hekate (Eyes)

The Surge Driver is a post-Moon Lord gun that is dropped by the Exo Mechs after XS-01 Artemis and XS-03 Apollo have been defeated last. When used with its primary fire (left-click), a laser beam is fired which creates a large glowing explosion on impact with tiles or enemies. The laser beam deals 600% damage while the large explosion deals 300% damage. When used with its secondary fire (right-click), two tile-passing energy bullets are inaccurately fired which splits into three comets on enemy hits. The comets home in after a short time and create a small explosion when destroyed. All projectiles from the secondary fire deal 108% damage.

Its best modifier is Unreal.



  • The Surge Driver is a reference to the Positron Rifle from the Evangelion franchise.


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
  • Increased sell price from 30 Gold Coin to 48 Gold Coin.
  • Fixed primary attack drawing two gun sprites on top of each other and being able to be canceled prematurely.
    • Primary fire use time now scales with attack speed boosts, nerfed laser beam damage from 666% base damage to 600%.
    • Lowered displayed use time from 56 to 28.
    • Primary fire no longer consumes one additional ammunition when initially used.
    • Fixed primary fire damage multiplier not applying.
  • Fixed its projectiles dealing melee damage instead of ranged damage.