The Giant Worm is an enemy that can be found underground. It is capable of quickly moving through walls (so you are not safe in a home with a background), and emits a characteristic shuffling sound as it moves through blocks that grows louder as it approaches the player. New or unsuspecting players may be caught by surprise due to their often sudden appearance.

Even for a player equipped with low tier gear, the Giant Worms' damage output and HP count is fairly low so you can pretty much ignore them while mining as your pickaxe will eventually kill them anyway. The most dangerous part is the knockback, which can easily fling a careless player flying into lava or a deep hole.

While mostly an annoyance later in the game, Giant Worms can be difficult for newer players to kill because of their speed, and their tendency to "hit and run" behind walls where the player can not quickly follow. Giant Worms also tend to follow players around, and can even follow them to the surface. It is best to fight them in an open area, rather than a small cave or tunnel. Although they are in the background, players can hit them with any weapon as they pass by, and can even hit them through walls if their weapons can reach.


Giant worm in a mine.


  • The Giant Worm, like all other burrowing creatures, can only "jump" a certain distance over the tile they emerge from.
  • As with all burrowing creatures, it is immune to lava damage.
  • The Giant Worm sprite is extremely similar to the sprite of the Leech.
  • The Giant Worm is normally the first Worm the Player encounters.
  • If you use the Magic Mirror while nearby a worm, it will follow you home and continue to attack you. This also happens with the Bone Serpent. It is possible other burrowing mobs act like this, though it hasn't been confirmed.
  • Ironically enough, the Giant Worm is actually the one of the smallest burrowing monsters in the game. The only smaller one is the Leech.

Update Info

PC release

  • Added to the game.

Monsters (Hardmode Monsters are in italic)
Slime Monsters Baby Slime · Black Slime · Blue Slime · Corrupt Slime · Dungeon Slime · Green Slime · Illuminant Slime · Jungle Slime · Lava Slime · Mother Slime · Pinky · Purple Slime · Red Slime · Shadow SlimeConsole · Slimeling · Slimer · Toxic Sludge · 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 · Dark Caster · Doctor Bones · Heavy Skeleton · Short Bones · Skeleton · Skeleton Archer · The Groom · Tim · Undead Miner · Vampire MinerConsole · Zombie
Humanoids Chaos Elemental · Clown · Dark Mummy · Light Mummy · Mummy · 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 Arch DemonConsole · Big Eater · Big Stinger · Bird · Cave Bat · Corruptor · Cursed Hammer · Cursed Skull · Demon · Demon Eye · Dragon HornetConsole · Dragon SkullConsole · Dragon StingerConsole · Eater of Souls · Enchanted Sword · Gastropod · Giant Bat · Giant Flying Fox · Harpy · Hellbat · Hornet · Illuminant Bat · Jungle Bat · Little Eater · Little Stinger · Meteor Head · Moss Hornet · Pixie · Shadow HammerConsole · Spectral GastropodConsole · Voodoo Demon · Vulture · Wandering Eye · Wraith
Swimming Monsters Angler Fish · Arapaima · Blue Jellyfish · Corrupt Goldfish · Goldfish · Green Jellyfish · OrcaConsole · Pink Jellyfish · Piranha · Shark · Squid
Hopping Monsters Bunny · Corrupt Bunny · Derpling · Giant Tortoise · Mimic · Slimes
Boss Monsters Arch WyvernConsole · Brain of Cthulhu · 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 · Antlion · Crab · Jungle Creeper · Mr. Stabby · Snow Balla · Snowman Gangsta · Unicorn