Terraria - Bosses
Terraria's campaign is a chain of summonable bosses rather than chapters. Most are summoned with a crafted item at a specific place or time, several gate world changes such as Hardmode and the Dungeon, and each drops the materials or weapons for the next tier. The list below follows the intended pro...
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of 28 entries
· updated 2026-09-15
| Name | Type | Description | Stats | Rewards | Source |
|---|---|---|---|---|---|
| King Slime | Pre-Hardmode Boss | A giant slime that teleports and splits into smaller slimes, the traditional first boss and a soft introduction to Terraria's boss fights. | Stage: Pre-Hardmode (first boss) Summon: Slime Crown, or naturally during Slime Rain Arena: Any open surface area | Slimy Saddle Slime Hook Ninja armour pieces Royal Gel (Expert) Solidifier (Expert) | Summoned with a Slime Crown made from Gel and gold or platinum bars, or by killing slimes during a Slime Rain |
| Eye of Cthulhu | Pre-Hardmode Boss | A flying eyeball that charges the player and spawns Servants of Cthulhu, transforming into a faster mouth form below half health. | Stage: Pre-Hardmode Summon: Suspicious Looking Eye at night Arena: Flat surface with room to dodge charges | Demonite Ore or Crimtane Ore Unholy Arrows Shield of Cthulhu (Expert) | Summoned with a Suspicious Looking Eye at night, or spawns naturally once the player has 200 health and enough defence |
| Eater of Worlds | Pre-Hardmode Boss | A segmented Corruption worm that burrows through blocks; killing each segment splits the body, so area damage and piercing weapons are the answer. | Stage: Pre-Hardmode (Corruption worlds) Summon: Worm Food in the Corruption Arena: Underground Corruption with room to move | Demonite Ore Shadow Scales Worm Scarf (Expert) | Summoned with Worm Food in the Corruption, or by breaking three Shadow Orbs |
| Brain of Cthulhu | Pre-Hardmode Boss | The Crimson counterpart to the Eater of Worlds: a teleporting brain protected by Creepers that must be cleared before the brain itself can be damaged. | Stage: Pre-Hardmode (Crimson worlds) Summon: Bloody Spine in the Crimson Arena: Underground Crimson chamber | Crimtane Ore Tissue Samples Brain of Confusion (Expert) | Summoned with a Bloody Spine in the Crimson, or by breaking three Crimson Hearts |
| Queen Bee | Pre-Hardmode Boss | The Jungle's hive boss, charging in dashes and releasing bees and stingers; her drops carry Bee gear through the rest of pre-Hardmode. | Stage: Pre-Hardmode (Jungle) Summon: Abeemination inside a Bee Hive, or breaking a Larva Arena: Underground Jungle hive | Bee Wax Bee Keeper Bee's Knees Hive Pack (Expert) | Summoned with an Abeemination in the Jungle, or by breaking a Larva inside a Bee Hive |
| Skeletron | Pre-Hardmode Boss | The Dungeon's guardian, a flying skull with two hands that must be destroyed first; defeating it unlocks the Dungeon and its chests. | Stage: Pre-Hardmode (Dungeon gate) Summon: Talk to the Old Man at the Dungeon entrance at night Arena: Dungeon roof or a flat platform above it | Book of Skulls Skeletron Hand Bone Glove (Expert) Dungeon access | Curse the Old Man at the Dungeon entrance at night and defeat him |
| Deerclops | Pre-Hardmode Boss | A Don't Starve crossover boss fought in the snow, calling ice spikes and shadow hands while stomping across the ground. | Stage: Pre-Hardmode (Snow biome) Summon: Deer Thing in a Snow biome Arena: Open snowfield | Pew-matic Horn Weather Pain Houndius Shootius | Summoned with a Deer Thing crafted from Flinx Fur, Demonite or Crimtane, and a Lens |
| Wall of Flesh | Pre-Hardmode Final Boss | The Underworld's wall boss, fought while it drags the player across hell. | Stage: Pre-Hardmode finale (Hardmode gate) Summon: Throw a Guide Voodoo Doll into lava in the Underworld Arena: A long built bridge across the Underworld | Pwnhammer Clockwork Assault Rifle Breaker Blade Laser Rifle Demon Heart (Expert) | Drop the Guide Voodoo Doll into lava in the Underworld, which kills the Guide and summons the Wall |
| Queen Slime | Hardmode Boss | The Hallow's slime queen, bouncing high and raining slime and crystal shards; her Expert drop and Blade Staff make her a common early Hardmode target. | Stage: Early Hardmode Summon: Gelatin Crystal in the Hallow Arena: Open Hallow surface | Blade Staff Gelatinous Pillion Crystal Assassin armour Volatile Gelatin (Expert) | Summoned with a Gelatin Crystal found in the Hallow |
| The Twins | Hardmode Mechanical Boss | Retinazer's lasers and Spazmatism's cursed flames, fought as a pair; both must die or the survivor enrages. | Stage: Hardmode (mechanical boss) Summon: Mechanical Eye at night Arena: Long sky bridge | Hallowed Bars Souls of Sight Trophy | Summoned with a Mechanical Eye at night |
| The Destroyer | Hardmode Mechanical Boss | A colossal mechanical worm that surfaces and fires lasers, spawning Probes as it takes damage; piercing weapons and a raised platform trivialise it. | Stage: Hardmode (mechanical boss) Summon: Mechanical Worm at night Arena: Raised platform well above the ground | Hallowed Bars Souls of Might Trophy | Summoned with a Mechanical Worm at night |
| Skeletron Prime | Hardmode Mechanical Boss | Skeletron rebuilt with a vice, saw, cannon and laser arm; the arms can be destroyed piecemeal before the skull is finished off. | Stage: Hardmode (mechanical boss) Summon: Mechanical Skull at night Arena: Long flat arena with vertical room | Hallowed Bars Souls of Fright Trophy | Summoned with a Mechanical Skull at night |
| Plantera | Hardmode Boss | The Underground Jungle's plant boss, fought in a tight cavern with seed, thorn and tentacle attacks; defeating her drops the Temple Key and unlocks the Jungle Temple. | Stage: Hardmode (post-mechanical bosses) Summon: Break a Plantera's Bulb in the Underground Jungle Arena: A cleared Underground Jungle arena | Temple Key Pygmy Staff Seedler Venus Magnum Grenade Launcher Spore Sac (Expert) | Break a Plantera's Bulb, which only spawns after all three mechanical bosses are defeated |
| Golem | Hardmode Boss | The Jungle Temple's stone guardian, fighting with fists, lasers and a jumping body; killing it opens the way to the Lunatic Cultist. | Stage: Hardmode (post-Plantera) Summon: Lihzahrd Power Cell at the Lihzahrd Altar Arena: Jungle Temple altar room | Possessed Hatchet Staff of Earth Picksaw Beetle Husks | Use a Lihzahrd Power Cell at the Lihzahrd Altar inside the Jungle Temple |
| Duke Fishron | Hardmode Boss | An optional Ocean boss that charges in dashes and floods the arena with sharknadoes and bubbles; his drops are some of the strongest in the post-Plantera tier. | Stage: Hardmode (optional, post-Plantera) Summon: Fish with a Truffle Worm in the Ocean Arena: Open Ocean surface | Tsunami Flairon Razorblade Typhoon Tempest Staff Fishron Wings Shrimpy Truffle (Expert) | Fish in the Ocean with a Truffle Worm as bait |
| Empress of Light | Hardmode Boss | The Hallow's radiant boss, a bullet-hell fight of light swords and homing beams. | Stage: Hardmode (post-Plantera) Summon: Kill a Prismatic Lacewing in the Hallow at night Arena: Large open Hallow arena | Nightglow Starlight Kaleidoscope Eventide Terraprisma (daytime only) | Kill a Prismatic Lacewing, which spawns in the Hallow after Plantera is defeated |
| Lunatic Cultist | Hardmode Boss | The cult leader at the Dungeon entrance, casting elemental clones and summoning the Ancient Manipulator's pillars; killing him starts the Lunar Events. | Stage: Endgame trigger Summon: Kill the Cultists at the Dungeon entrance Arena: Dungeon entrance | Ancient Manipulator Trophy Starts the Lunar Events | Defeat the four Cultists praying at the Dungeon entrance after Golem is defeated |
| Moon Lord | Final Boss | The final boss of Terraria, fought after all four Celestial Pillars fall. | Stage: Endgame (final boss) Summon: Defeat the four Celestial Pillars, or use a Celestial Sigil Arena: Wide arena with vertical space and healing station | Meowmere Star Wrath Terrarian Last Prism S.D.M.G. Gravity Globe (Expert) | Destroy the four Celestial Pillars during the Lunar Events, or summon with a Celestial Sigil |
| Dark Mage | Event Boss (Old One's Army) | The first boss of the Old One's Army, a floating spellcaster that shields himself and summons Old One's skeleton minions while the Eternia Crystal is defended. | Stage: Event boss Summon: Old One's Army event at the Eternia Crystal Stand Arena: Eternia Crystal arena | War Table Dark Mage's Tome Defender Medals | Appears in the Old One's Army event after the Eternia Crystal Stand is placed |
| Ogre | Event Boss (Old One's Army) | The second Old One's Army boss, a charging brute that jumps across the arena and throws boulders at the crystal. | Stage: Event boss Summon: Old One's Army event after Plantera Arena: Eternia Crystal arena | Ogre's Club Defender Medals Trophy | Appears in the tier 2 and tier 3 Old One's Army events |
| Betsy | Event Boss (Old One's Army) | The final Old One's Army boss, a flying dragon that breathes fire across the arena; her drops are the reward for clearing the hardest tier of the event. | Stage: Event boss (final tier) Summon: Tier 3 Old One's Army event after Golem Arena: Eternia Crystal arena | Flying Dragon Betsy's Wrath Betsy Wings Defender Medals | Appears in the tier 3 Old One's Army event |
| Flying Dutchman | Event Boss (Pirate Invasion) | A ghost ship that sails above the invasion and fires cannon volleys; it is the only source of some of the Pirate Invasion's best drops. | Stage: Event boss Summon: Pirate Invasion event Arena: Open sky above the base | Flying Dutchman Trophy Coin Gun Lucky Coin | Appears during a Pirate Invasion in Hardmode |
| Martian Saucer | Event Boss (Martian Madness) | The Martian invasion's flagship, hovering above the ground and firing death rays and laser turrets. | Stage: Event boss (post-Golem) Summon: Martian Madness event Arena: Open surface area | Influx Waver Xeno Staff Electrosphere Launcher Cosmic Car Key | Appears during the Martian Madness event, triggered by a Martian Probe |
| Mourning Wood | Event Boss (Pumpkin Moon) | A burning tree that walks the Pumpkin Moon waves, spitting fire and dropping the event's early weapons. | Stage: Event boss (Pumpkin Moon) Summon: Pumpkin Moon event Arena: Flat arena with room to kite | Stake Launcher Spooky Wood Trophy | Appears in the Pumpkin Moon event, summoned with a Pumpkin Moon Medallion |
| Pumpking | Event Boss (Pumpkin Moon) | The final Pumpkin Moon boss, a floating jack-o'-lantern that fires flaming scythes and splits its head into spinning blades. | Stage: Event boss (Pumpkin Moon finale) Summon: Pumpkin Moon event, late waves Arena: Flat arena with vertical dodging room | Horseman's Blade Raven Staff Dark Harvest Trophy | Appears in the later waves of the Pumpkin Moon |
| Everscream | Event Boss (Frost Moon) | A screaming pine tree boss from the Frost Moon, firing ornament and spike projectiles while the waves escalate. | Stage: Event boss (Frost Moon) Summon: Frost Moon event Arena: Flat arena with cover | Christmas Tree Sword Razorpine Trophy | Appears in the Frost Moon event, summoned with a Naughty Present |
| Santa-NK1 | Event Boss (Frost Moon) | A robotic Santa that fires rockets from a shoulder launcher and sprays a chaingun, one of the two mid-bosses of the Frost Moon. | Stage: Event boss (Frost Moon) Summon: Frost Moon event Arena: Flat arena with cover | Chain Gun Elf Melter Festive Wings Trophy | Appears in the middle waves of the Frost Moon |
| Ice Queen | Event Boss (Frost Moon) | The Frost Moon's final boss, flying above the arena and raining ice shards and frost waves. | Stage: Event boss (Frost Moon finale) Summon: Frost Moon event, late waves Arena: Flat arena with vertical dodging room | Blizzard Staff North Pole Trophy | Appears in the later waves of the Frost Moon |
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