CRSPR Flamethrower

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When bullets or blunt force just don't cut it, a sea of roaring, sticky napalm usually does. Practically never explodes in your face.
— Item Description

The CRSPR Flamethrower is the Driller's default primary weapon. It is a combat-ready flamethrower which gets its fuel from large tanks inserted into a cage on the side. Its twin pilot lights ignite when firing, and extinguish upon reloading.

The flamethrower emits a stream of fire when the trigger is held, damaging enemies and quickly raising their temperature to ignite them. Creatures lit on fire take damage over time and heat up other nearby creatures, more information about the "On Fire" status here. The flame stream also leaves behind "Sticky Flames" on any surface it touches, sticky flames damage and heat up any enemies who walk through them.

The flamethrower has several other unique interactions; Due to the weapon dealing fire damage, it is especially effective against enemies with a weakness to fire, such as Glacial Strata enemy variants or Mactera enemies. This also means it deals reduced damage against fire resistant enemies, such as the Glyphid Grunt Guard or Glyphid Dreadnought. The flame stream possesses infinite blow-through, allowing it to damage any enemies within its range. The flame stream is not affected by armor and cannot damage it, allowing it to damage enemies through their armor plates.

All types of Dreadnoughts, as well as the Rival Caretaker, cannot be ignited. Igniting any Rival robot, aside from the Prospector Drone, will kill or disable it instantly.


There are five tiers of modifications and each tier has two to three upgrades. Only one modification can be equipped per tier.

CRSPR Flamethrower Modifications
Mod Effect In Game Description Price
Tier 1 Icon Upgrade ClipSize.png
High Capacity Tanks
+25 Tank Size "The good thing about clips, magazines, ammo drums, fuel tanks can always get bigger variants."
Credit.png 1200 Credits
Enor Pearl 25 Enor Pearl
Icon Upgrade Distance.png
High Pressure Ejector
+5m Flame Reach "Increases the range of the flame for long distance incineration."
Credit.png 1200 Credits
Bismor 25 Bismor
Tier 2
Level 4
Icon Upgrade DamageGeneral.png
Unfiltered Fuel
+4 Damage "The good folk in R&D have been busy. The overall damage of your weapon is increased."
Credit.png 2000 Credits
Croppa 24 Croppa
Enor Pearl 15 Enor Pearl
Icon Upgrade Heat.png
Triple Filtered Fuel
+10 Heat

(Direct damage only)

"Fire it up! You set things ablaze much faster. Time to watch the world burn...!"
Credit.png 2000 Credits
Jadiz 24 Jadiz
Enor Pearl 15 Enor Pearl
Icon Upgrade Duration V2.png
Sticky Flame Duration
+3s Sticky Flame Duration "Sticky flames duration increase"
Credit.png 2000 Credits
Magnite 24 Magnite
Bismor 15 Bismor
Tier 3
Level 8
Icon Upgrade FireRate.png
Oversized Valves
+1.8 Fuel Flow Rate "Increased fuel consumption rate for more damage"
Credit.png 2800 Credits
Umanite 50 Umanite
Bismor 35 Bismor
Icon Upgrade Sticky.png
Sticky Flame Slowdown
+Sticky Flame Slowdown

(x0.5 speed. Base is x0.9, making enemies 55% slower)

"Creatures moving through sticky flames are slowed"
Credit.png 2800 Credits
Jadiz 50 Jadiz
Umanite 35 Umanite
Icon Upgrade Ammo.png
More Fuel
+75 Max Fuel "You had to give up some sandwich-storage, but your total ammo capacity is increased!"
Credit.png 2800 Credits
Croppa 35 Croppa
Umanite 50 Umanite
Tier 4
Level 12
Icon Upgrade ScareEnemies.png
It Burns!
+20% Fear Factor
(Proc for every fuel spent)
"A chance that your target will flee in terror for every second

that it is in your flame."

Credit.png 4800 Credits
Magnite 50 Magnite
Umanite 72 Umanite
Bismor 48 Bismor
Icon Upgrade Duration V2.png
Sticky Flame Duration
+3s Sticky Flame Duration "Sticky flames duration increase"
Credit.png 4800 Credits
Magnite 50 Magnite
Umanite 48 Umanite
Enor Pearl 72 Enor Pearl
Icon Upgrade Ammo.png
More Fuel
+75 Max Fuel "You had to give up some sandwich-storage, but your total ammo capacity is increased!"
Credit.png 4800 Credits
Croppa 48 Croppa
Enor Pearl 50 Enor Pearl
Bismor 72 Bismor
Tier 5
Level 16
Icon Upgrade Heat.png
Heat Radiance
+4m Area Heat Range "Burn everything around you"
Credit.png 5600 Credits
Croppa 140 Croppa
Magnite 64 Magnite
Bismor 70 Bismor
Icon Upgrade Explosion.png
Targets Explode
+50% Killed Targets Explode "Targets killed from direct damage have a chance to explode"
Credit.png 5600 Credits
Croppa 64 Croppa
Jadiz 140 Jadiz
Enor Pearl 70 Enor Pearl


Overclock calculations happen after modifiers.

Flamethrower.png CRSPR Flamethrower [Expand/Collapse]
Overclock Effect In Game Description Price
Lighter Tanks
Frame Overclock Clean.png
Icon Upgrade Ammo.png

Pos.svg +75 Max Fuel

"Lighter weight gear means more fuel and sandwiches."
Credit.png 7500 Credits
Croppa 75 Croppa
Umanite 90 Umanite
Bismor 125 Bismor
Sticky Additive
Frame Overclock Clean.png
Icon Upgrade Duration V2.png

Pos.svg +1 Damage
Pos.svg +1s Sticky Flame Duration

"Special additive compound extends the Sticky Flame duration and increases direct damage."
Credit.png 8250 Credits
Jadiz 130 Jadiz
Magnite 100 Magnite
Bismor 80 Bismor
Compact Feed Valves
Frame Overclock Balanced.png
Icon Upgrade ClipSize.png

Pos.svg +25 Tank Size
Pos.svg +75 Max Fuel
Neg.svg -2m Flame Reach
Neg.svg +0.2s Reload Time

"The smaller mechanism allows for greater tank capacity and more fuel at the cost of reload speed and operational range."
Credit.png 7350 Credits
Jadiz 90 Jadiz
Umanite 130 Umanite
Bismor 70 Bismor
Fuel Stream Diffuser
Frame Overclock Balanced.png
Icon Upgrade Distance.png

Pos.svg +5m Flame Reach
Neg.svg -1.2 Fuel Flow Rate

"Increases operation range but decreases the fuel flow rate."
Credit.png 7100 Credits
Jadiz 125 Jadiz
Enor Pearl 80 Enor Pearl
Bismor 100 Bismor
Face Melter
Frame Overclock Unstable.png
Icon Upgrade DamageGeneral.png

Pos.svg +4 Damage
Pos.svg +1.8 Fuel Flow Rate
Neg.svg -3m Flame Reach
Neg.svg -15 Tank Size

"This crazy bit of tweaking will give a big boost in damage and flow rate but at the cost of operational range and tank capacity."
Credit.png 7000 Credits
Croppa 130 Croppa
Magnite 90 Magnite
Enor Pearl 70 Enor Pearl
Sticky Fuel
Frame Overclock Unstable.png
Icon Upgrade Duration V2.png

Pos.svg +10 Sticky Flame DPS
Pos.svg +6s Sticky Flame Duration
Neg.svg -25 Tank Size
Neg.svg -75 Max Fuel

"Special fuel mixture extends the duration and damage of Sticky Flames but at the cost of tank capacity and total fuel."
Credit.png 8800 Credits
Jadiz 140 Jadiz
Magnite 75 Magnite
Enor Pearl 110 Enor Pearl
Scorching Tide
Frame Overclock Unstable.png
Icon Overclock Special Magazine.png

Pos.svg Holding reload charges up and fires a horizonal spread of 8 fiery projectiles
Neg.svg 25 Charge Shot Cost
Neg.svg Slower movement while charging

"A supercharged injection system and integrated duckbill choke allows the weapon to blast a blistering horizontal wave of flame by holding reload. Using this mechanism eats up additional fuel and makes the weapon unstable, reducing movement speed during charging."
Credit.png 7300 Credits
Magnite 105 Magnite
Umanite 140 Umanite
Bismor 70 Bismor

Stats Breakdown

Understanding the Weapon

Sticky Flames

  • Damage (per tick): 15 Fire
  • Tick Interval: 0.25-0.75s
  • Maximum Damage Radius: 0.75m
  • Radius: 0.75m
  • Slowdown: 10% (x0.9 Movement Speed)
    • 55% (x0.45 Movement Speed) with "Sticky Flame Slowdown" Mod
  • Duration: 2s
Sticky Flame Duration
Weapon Modification Duration Weapon Overclock Duration
Sticky Flame Duration (Tier 2) +3s Sticky Additive overclock +1s
Sticky Flame Duration (Tier 4) +3s Sticky Fuel overclock +6s

Sticky Flame Heat

The Sticky Flames have an Area Heat Radius of 0.75m, acting as an Environmental Heat Source with an Intensity value of 3. The total heat being applied to any given creature is:

Most of the time the amount of Heat 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.

Unique Modifications

Unique Modifications
Icon Upgrade Heat.png
Heat Radiance
Heat Radiance is a modification that causes the Flamethrower to emit an aura of heat onto all enemies within 4 meters, while the trigger is being held. The heat is strong enough to ignite most enemies after 1 second of constant fire, and can expedite the rate at which enemies at very close ranges are ignited by the flamethrower's direct flame or sticky flames.
Icon Upgrade Explosion.png
Targets Explode
Targets Explode is a modification that gives enemies a 50% chance to explode if killed with direct damage. This damages enemies inside of the 0.5 meter radius of the explosion.

This applies to creatures of any size, including small enemies like swarmers or maggots.

Unique Overclocks

Unique Overclocks
Frame Overclock Unstable.png
Icon Upgrade Duration V2.png

Sticky Fuel

Sticky Fuel is an overclock that adds a second Damage Over Time (DoT) effect to Sticky Flames with its own tick rate and damage.

  • Damage (per tick): 5 Fire
  • Tick Interval: 0.5s


Each modification that is purchased advances a mastery bar by one unit.

Mastery unlocks:

  • Three modifications – First Stripe Weapon Paintjob Icon Skin First Stripe.png
  • Seven modifications – Deepcore Weapon Paintjob Icon Skin Deepcore.png
  • All (13) modifications – The Company Special Weapon Paintjob Icon Skin The Company Special.png


Full gallery of skins can be seen at Weapon Skins.



  • The CRSPR will melt the environment in Glacial Strata. They can also melt platforms if the Engineer who placed them has the Plastcrete MKII modification.
  • "CRSPR" is a play on the word "crisper", referring to the weapon's ability to burn creatures to a crisp.
  • The CRSPR will burn through Organic Material on Egg Hunt missions.
  • Mission Control, in his comments when the player completes the assignment to unlock the Colette Wave Cooker, implied that the CRSPR was once used to cook food in the lunchroom, which likely ended poorly for everyone involved given how he called it "the flamethrower incident in the lunchroom."
This page is possibly not up to date. It was last updated for Update 34: Modest Expectations
Updated for U34