Slime Rancher Wiki

Like a little campfire, except that it moves and it's a slime.
— the Slimepedia

Fire Slimes are primarily encountered during Solar Anomalies in The Glass Desert. They require a specific habitat to survive and can feed on any food from the fruit, veggie, or meat categories as long as it has been burned on the Incinerator and converted to ash.

Because of their similarities, they are often considered to be a counterpart to the Puddle Slime.

Slimepedia Entry

Fire slimes are a rare breed of slime that lives on ash. Fire slimes will eat just about any food, but not without it being burned into ash first. The only way to feed a fire slime is to use an incinerator with an ash trough upgrade.

Fire slimes need ash to survive and will quickly snuff out if left on any other surface for too long. When keeping fire slimes in an ash trough, simply burn any food item to produce some ash and fill the trough. 

Rancher Risks:
A fire slime's naturally burning state makes them bad companions for other slimes as their fiery touch will send a slime flying. Additionally, fire slimes and their plorts need to be kept in an ash trough under an incinerator or they'll quickly snuff out. If you need to deal with fire slimes directly, a splash of fresh water will put out their fires for a short while.

Fire plorts are used in the developing world on Earth to keep stoves and fireplaces burning. Thanks to fire plorts, warm hands and hot food is a possibility for millions of people who otherwise would not have access to such luxuries. 

A rancher won't get rich selling fire plorts, and certainly managing them can be a dangerous endeavor, but they should know that the sale of each helps those in need. Now and far into the future, the little noble actions of every individual help us move forward as a people. That much will never change.


  • Unlike their Puddle counterparts, Fire slimes do not have a hard limit of how many can be in the same Ash Trough. As such, you can keep as many fire slimes in them as you wish.
  • While water will extinguish the fire from the fire slimes, it will also extinguish the fire plorts, causing them to burst instantly. As such, it is recommended to simply take the risk of getting burned when vaccing up Fire Plorts.
  • A burning Fire Slime will heavily agitate any Slime that comes into contact with it; for example, a happy well-fed Hunter Largo can turn feral after just three hits.
  • If a lit Fire Slime touches an un-lit Fire Slime, the un-lit one will re-light its flame


  • On the Plortable Edition, Fire Slimes may despawn in the Incinerator Ash Trough.


  • 1.3.0 - Fixed bug where puddle and fire slimes sometimes did not properly notice that they weren’t on their preferred surface.
  • 1.2.1 - Fixed bug where fire slimes would (tragically) bounce (out of their troughs) with excitement when they saw Beatrix return to the ranch.
  • 1.2.0 - Fixed bug where fire slimes in ponds sometimes did not despawn properly.
    • Fixed bug where fire slimes in water did not become extinguished.
  • 1.1.1 - Fixed bug where Tarr and Fire slimes were bounced too aggressively out of ponds.
  • 1.1.0 - Fire slimes have lost the ants in their pants and no longer leap at toys. It was getting them killed.
  • 1.0.1 - Fire slimes will no longer despawn in an empty Ash Trough, but will not be fed if left empty.
  • 0.6.0 - Fire slimes have been added and are spawned during Solar Anomalies.
    • 0.6.0b - Fixed bug that caused Fire slimes to not periodically spawn during Solar Anomalies.


The Fire Slime has the appearance of a slow burning thick flammable liquid. Its diet of ash, which is produced by incinerating food, is a simplified version of the process of producing charcoal, often used to keep fires lit.

The Fire Slime's Secret Style - Devilish - is based on the common interpretation of devils, commonly associated with fire and Hell, but may also be based on a generic fire demon. Its blue flames are typical of combustion with little to no soot content. Its purple coloration and yellow eyes shares a physical resemblance to Devilites from Spiral Knights, while its fiery aura may be based on their stronger Overtimer variants.


  • Fire Slimes, their plorts, and their Slime Toy the Charcoal Brick are all immune to the Incinerator. They are also immune from agitating each other on contact.
  • Fire Slimes cannot survive under normal conditions anywhere in the Far, Far Range, as there is no naturally occurring ash.
  • Fire slimes produce a plort every 2 in game hours if possible, and will save up to 3 complete timers if it isn't possible.
  • In the prototype phase of The Glass Desert, Fire Slimes were white instead of being red.


Docile Pink SlimePhosphor SlimeTabby SlimeHoney SlimePuddle SlimeSaber SlimeHunter SlimeQuantum SlimeTangle SlimeDervish Slime
Harmful Rock SlimeBoom SlimeRad SlimeCrystal SlimeMosaic SlimeFire Slime
Hostile The TarrFeral Slimes
Special Quicksilver SlimeGlitch SlimeGold SlimeGordo Slimes (Party Gordo)Twinkle SlimeLargo SlimesLucky Slime
Behaviors AgitationHungerFearStackingPounce
Scrapped Meteor Slime
Meat Hen HenChickadooRoostroElder HenElder RoostroBriar Hen (Chickadoo)Stony Hen (Chickadoo)Painted Hen (Chickadoo)Chicken Breeding
Fruit PogofruitCuberryMint MangoPhase LemonPrickle PearKookadoba
Veggie CarrotHeart BeetOca OcaOdd OnionSilver ParsnipGilded Ginger (Locations)
Other WaterAshSpicy Tofu
Plots CoopCorralGardenIncineratorPondSilo
Facilities Plort MarketVacpack (Augmented Vacpack)Range ExchangeRanch HouseStarmailDecorizerChime Changer
7Zee Rewards Club Chroma PacksSlime Toys
Decorative EchoesOrnamentsChimes
The Ranch The GrottoThe OvergrowthThe LabThe DocksOgden's RetreatMochi's ManorViktor's Workshop
Wilderness The Dry Reef (Ring Island)The Slime Sea (Moustache Island)The Moss Blanket (Mushroom LakeFeral Path)The Indigo Quarry (Crystal VolcanoAsh Isle)The Ancient RuinsThe Glass DesertThe WildsNimble ValleyThe Slimeulation
The Vaults Ring Island VaultAsh Isle VaultFeral Path Vault
Features CrateWorld MapMap Data NodesWater SpringsWaterSlime KeySlime GateStatic TeleportersSlime StatueFountain (Locations)Ancient WaterOasisSolar AnomaliesDebug SprayBug ReportsRayvians
Nimble Valley projectiles Spark ShotThunderclapStatic ClingerSlooow Field
Gadget Types ExtractorsUtilitiesWarp TechDecorationsCurios
Drill JellystoneSlime FossilStrange DiamondIndigoniumGlass Shard
Apiary Buzz WaxHexacombRoyal JellyWild HoneyPepper Jam
Pump Primordy OilSpiral SteamLava DustDeep BrineSilky Sand
Other Manifold Cube
Treasure Pods The RanchThe Dry ReefThe Moss BlanketThe Indigo QuarryThe Ancient RuinsThe Glass DesertOgden's RetreatThe WildsNimble ValleyThe Slime SeaThe SlimeulationSecret Style Paid DLC Pack
Additional Information
Economy PlortsNewbucks
Characters Beatrix LeBeau (Knocked Out)NPCs (Thora WestViktor HumphriesOgden OrtizMochi MilesBObHobson TwillgersCasey)7Zee Corporation
Game Information Downloadable ContentFAQsGame VersionsUpcoming FeaturesSlimepediaControlsAchievementsLoading Screen TextsGame ModesVR Playground
Events Wiggly Wonderland (2017)Wiggly Wonderland (2018)Wiggly Wonderland (2019)Wiggly Wonderland (2020)Party Weekend
Monomi Park Ian McConvilleNick PopovichConcept ArtSlime Rancher: Original SoundtrackSlime Rancher: Original Soundtrack II + The Casey Sessions
Cut/Removed content Meteor SlimeFive Day RushUnused Features