EMP shell

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EMP shell

EMP shell.png

A shell filled with batteries and antennas, for generating an EMP pulse when detonated. Electromagnetic pulses temporarily disable electrical circuits. Can be fired from mortars or installed as a trap. Explodes when damaged.

Crafted Resource
Stack Limit

Base Stats

Deterioration Rate
Market Value
Max Hit Points

Stat Modifiers

The EMP shell is a type of mortar shell that upon exploding, deals 50 EMP damage in a 8.9-tile radius, instantly downing shields and stunning mechanoids, turrets and other mortars for 25 seconds.

After being stunned, mechanoids become 'Adapted' and gain immunity against further stuns for 2,200 ticks (36.67 secs). Immunity is applied on stun, and will not be extended by stunning an adapted or already stunned mechanoid.


It is made using 25 steel and 2 components at a machining table.


It is a niche weapon that is extremely good at whatever it does- downing shields and stunning mechanoids. Because of this, it finds really good value even though it deals no physical damage whatsoever.

Due to its large blast radius, only a few shells are usually required for each barrage to hit all enemies. Given that, as well as its combat effectiveness, it is a very cost-efficient choice, despite requiring components to make.

Version history

In 1.1 its crafting cost was increased (20 --> 25 steel, 1 --> 2 components).