The Fire Imp is a mage found in The Underworld. Fire Imps will teleport around and shoot a spell called Burning Sphere at the player. Burning Spheres travel through walls and can be destroyed if at least 1 damage is applied against them. Fire Imps' attack pattern is identical to that of Dark Casters and Goblin Sorcerers. If a player touches a fire imp, they will take damage as if they were burned. The Obsidian Skull does not affect this.

Using the Demon Scythe is a very effective way to deal with Fire Imps, as the Demon Scythe generates around the player, making a shield and then launches into the imp.

They cannot spawn in tunnels three blocks high by two blocks wide. They can spawn on platforms but platforms do not count as a ceiling. If one tunnels deep enough with no open spaces around they will stop spawning altogether. This is an effective way to mine Hellstone ore very quickly at the bottom of the map.

Fire Imps shoot three burning spheres then pause for a second before teleporting and repeating, which continues until it dies or despawns. In addition, they will teleport early if they have been attacked. They will occasionally teleport on top of a player, dealing damage. While being attacked or falling through lava, they are unable to teleport or shoot. As of the 1.0.5 update, Fire Imps are immune to lava.

Fire Imps are annoying to deal with in the Underworld. It is recommended to bring a Cobalt Shield, which removes knockback, and/or an Obsidian Skull, and if not either, an Obsidian Skin Potion. Any of these help so that you can easily maneuver around without being hurt by a Hellstone. A good weapon to fight Fire Imps in groups is the Vilethorn, since it goes through walls, constantly deals damage, and keeps them from teleporting or casting Burning Spheres.

As of update 1.0.4, Burning Spheres no longer drop hearts or coins. Also, Burning Spheres can be blocked by using any flail besides the Harpoon by holding down the attacking mouse button. This has a barrier-like effect on the spheres, but the spheres can still hit you from some angles.

Fire imps have an uncommon spawn rate and shoot slower as of the 1.0.5 update.

Imps used to drop the Flower of Fire, but as of the 1.0.6 update, they no longer do.


  • Due to the Fire Imp's ability to teleport, a player can lure the Imp to the surface by using a Grappling Hook, or other device to quickly ascend while the Imp is following the player.
  • The Fire Imp may be a reference to the imp enemy in the game Doom, as they are both fireball-shooting demons.
  • The Fire imp has a rare drop that resembles the hat owned by the Nintendo character, Mario.

Update Info



  • Longer delay was added between the end of the three-shot volley and the Fire Imp's teleport.
  • No longer damaged by lava.

PC release

  • Added to the game.


Monsters (Hardmode Monsters are in italic)
Slime Monsters Baby Slime · Black Slime · Blue Slime · Corrupt Slime · Crimslime · Dungeon Slime · Green Slime · Hoppin' Jack · Ice Slime · Illuminant Slime · Jungle Slime · Lava Slime · Mother Slime · Pinky · Purple Slime · Red Slime · Sand Slime · Shadow SlimeConsole · Slimeling · Slimer · Spiked Ice Slime · Spiked Jungle Slime · Toxic Sludge · Umbrella Slime · Yellow Slime
Goblins Goblin Archer · Goblin Peon · Goblin Scout · Goblin Sorcerer · Goblin Thief · Goblin Warrior · Goblin Summoner
Undead Monsters Angry Bones · Armored Skeleton · Big Boned · Blue Armored Bones · Bone Lee · Dark Caster · Doctor Bones · Heavy Skeleton · Hell Armored Bones · Rusty Armored Bones · Short Bones · Skeleton · Skeleton Archer · Skeleton Commando · Skeleton Sniper · Tactical Skeleton · The Groom · Tim · Undead Miner · Undead Viking · Vampire MinerConsole · Zombie
Humanoids Chaos Elemental · Clown · Dark Mummy · Light Mummy · Mummy · Nymph · Possessed Armor · Shadow MummyConsole Spectral ElementalConsole · Spectral MummyConsole · Werewolf
Mages Dark Caster · Fire Imp · Goblin Sorcerer · Tim · Rune Wizard · Desert Spirit
Plant Monsters Angry Trapper · Dragon SnatcherConsole · Clinger · Man Eater · Snatcher
Burrowing Monsters Bone Serpent · Devourer · Digger · Giant Worm · World Feeder · Tomb Crawler · Dune Splicer
Flying Monsters Angry Nimbus · Antlion Swarmer · Arch DemonConsole · Big Eater · Big Stinger · Bird · Cave Bat · Corruptor · Crimera · Crimson Axe · Cursed Hammer · Cursed Skull · Demon · Demon Eye · Dragon HornetConsole · Dragon SkullConsole · Dragon StingerConsole · Drippler · Eater of Souls · Enchanted Sword · Floaty Gross · Flying Fish · Gastropod · Ghost · Giant Bat · Giant Cursed Skull · Giant Flying Fox · Harpy · Hellbat · Hornet · Ice Bat · Ichor Sticker · Illuminant Bat · Jungle Bat · Lava Bat · Little Eater · Little Stinger · Meteor Head · Moss Hornet · Pixie · Raven · Red Devil · Shadow HammerConsole · Spectral GastropodConsole · Voodoo Demon · Vulture · Wandering Eye · Wraith
Swimming Monsters Angler Fish · Arapaima · Blue Jellyfish · Corrupt Goldfish · Crimtane Goldfish · Goldfish · Green Jellyfish · OrcaConsole · Pink Jellyfish · Piranha · Shark · Squid
Hopping Monsters Bunny · Corrupt Bunny · Crimtane Bunny · Derpling · Giant Shelly · Giant Tortoise · Herpling · Ice Tortoise · Mimic · Slimes
Boss Monsters Arch WyvernConsole · Brain of Cthulhu · Duke Fishron · Eater of Worlds · Eye of Cthulhu · Golem · King Slime · OcramConsole · Plantera · Queen Bee · Skeletron · Skeletron Prime · The Destroyer · The Twins · Wall of Flesh · Wyvern · Mourning Wood · Pumpking · Everscream · Santa-NK1 · Ice Queen · Martian Saucer · Lunatic Cultist · Nebula Pillar · Solar Pillar · Stardust Pillar · Vortex Pillar · Moon LordFinal Boss
Boss-Related Monsters Dungeon Guardian · Leech · Probe · Servant of Cthulhu · Servant of OcramConsole · The Hungry
Immortal Blazing Wheel · Spike Ball
Projectile Burning Sphere · Chaos Ball
Other Albino AntlionConsole · Angry Tumbler · Antlion · Antlion Charger · Antlion Swarmer · Crab · Crawdad · Jungle Creeper · Mr. Stabby · Salamander · Snow Balla · Snowman Gangsta · Unicorn