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One of our most popular "handle with care" items. Will explode on activation, covering a large area in roaring fire. Would almost be cozy if the flames did not burn hot enough to melt steel.
— Item Description

The Incendiary Grenade is an unlockable Throwable for the Gunner. It is a firebomb stick grenade, with a handle larger than the payload container, the latter being colored a bright orange.

Instead of producing an explosion, the Incendiary Grenade will carpet any area where it lands in a roaring hot fire, roughly arranged in a circle shape. The fire effect behaves similarly to the Sticky Flames attribute used by the CRSPR Flamethrower, lingering on the ground and damaging anyone who walk through it (allies included, unlike the CRSPR's Sticky Flames). it will also raise their temperature, causing spontaneous combustion if an enemy lingers in the fire for too long. Enemies who are hit with the grenade's initial explosion will instantly catch fire.

The grenade will only explode when it touches a floor; it simply bounces off of surfaces and walls.

This grenade deals no direct damage whatsoever, even enemies who are directly hit with the grenade, while instantly combusting, will only take tick fire damage from the flames on the ground and while burning after leaving the fire circle.

Level Unlocked through a level cap.
Requires Gunner Level 5
Purchased for:
Credit 1200 Credits
Magnite 10 Magnite
Explosion Stats
Carried Amount 4
Damage 100 Heat
Maximum Damage Radius 1.5m
Radius 3.5m
Minimum Damage 50%
Friendly Fire 20%
Flames Stats
Damage 10 Fire
Interval 0.5-1s
Radius 4.3m
Duration 6s

Flame Puddle Heat[]

The Incendiary Grenade's puddles of flames are considered to be On Fire with a 0.75m Area Heat Radius. Along with this the flame puddles act as an Environmental Heat Source with an Intensity value of 3. To calculate the total heat being applied to any given bug simply use this formula:

Most of the time the amount of Heat damage will simply be 20 + 5 * [ Nearby Puddles ]. The Heat Intensity can be reduced in the presence of Environmental Cooling such as the Blizzards that may occur in the Glacial Strata.


  • Traces of a "Molotov" grenade were present in an early version of the game. It is likely these ideas blossomed into the Incendiary Grenade, which is more comparable to modern firebombs than the traditional molotov cocktail.
  • It appears similar in shape to the real-life German stielhandgranate (stick hand grenade) used in the World Wars.

This page is possibly not up to date.
This page is possibly not up to date. It was last updated for Update 34: Modest Expectations