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Not available underwater  
Engineer icon small.png Engineer (skill list)
Parent skill
Thumper Turret.png Thumper Turret
Game link

Overcharge your thumper turret to launch nearby foes.

Damage.png Damage: 953 (1.5)?
Damage.png Damage: 6 (0.01)?
Launch.png Launch: 0
Number of targets.png Number of Targets: 5
Radius.png Radius: 240
Combo.png Combo Finisher: Blast
Evade.png Defiance Break: 232

— In-game description


  • This skill causes 232 Defiance bar damage.
  • The duration of Thump is 5 seconds, allowing it to trigger twice if not destroyed.
  • Like all overcharge skills, this skill enhances the turret's regular attack, meaning that the skill won't activate until the turret fires.
  • If the turret is detonated while it is overcharged but before it uses Thump, both the turret and the engineer will cause a blast finisher at their respective location for a total of two.

Version history[edit]

For a detailed skill history, see here.

Patch Changes
February 28, 2022 End of Dragons release:
  • (Undocumented) Added tooltip fact Defiance Break.
February 25, 2020 Competitive content update:
  • (Competitive split) Reduced power coefficient from 1.0[sic] to 0.01.
May 16, 2017
  • Turrets no longer need to be overcharged. Summoning a turret will automatically overcharge it once.
  • Detonate Turret: This skill has been moved off of the Tool Belt skill. It is now the flip skill for the associated turret.
  • Thumper Turret: Overcharge attack now launches foes straight up instead of out of the turret's attack range.
November 26, 2013
  • This skill now functions with Rifled Turret Barrels, increasing its radius from 240 to 360.
August 20, 2013
  • Updated the damage skill fact to more accurately reflect the damage done.
November 15, 2012
  • Increased the damage of the Overcharged attack by 25%.
August 28, 2012 Game release:
  • Thump has been added to the game.