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Type Boss
Health Points 360 (HeartFull.png x 180)
Attack Strength Fire breath: 4.5 - 9 (HeartFull.pngHeartFull.png - HeartFull.pngHeartFull.pngHeartFull.pngHeartFull.pngHeartHalf.png)

Includes fire damage
Bomb: 3.5 - 9 (HeartFull.pngHeartHalf.png - HeartFull.pngHeartFull.pngHeartFull.pngHeartFull.pngHeartHalf.png)
Bite: 5.5 - 10 (HeartFull.pngHeartFull.pngHeartHalf.png - HeartFull.png x 5)

Drops Hydra Chop (5-35)

Fiery Blood (7-10)
Hydra Trophy (1)

ID hydra

The Hydra can be found in a unique, cracked-open Hydra Lair in a Fire Swamp. The Hydra appears as a massive creature, with two stumpy legs supporting a wide, scaly body. Multiple serpentine necks end in heads that bear a passing resemblance to that of the Ender Dragon. The entire creature is covered in blue-green and dark blue scales.


The Hydra is extremely dangerous in combat, and full Diamond, Steeleaf or Naga Scale armor is recommended. The Hydra has three main attacks. All of its attacks come with ample warning individually, but multiple heads will often attack at the same time, so players will have to react quickly.

The Hydra's thick scales offer considerable protection, and many of an adventurer's attacks will deal little damage unless aimed directly into one of the Hydra's unprotected open mouths.

If one of the heads receives enough damage, it will die. Unfortunately, two heads quickly grow back to replace every one lost, to a maximum of seven heads. The Hydra starts with three heads, so plan accordingly. This can prove difficult if the Hydra is left alone for long enough, slowly healing over time.

Fire Breath[edit]

The Hydra's signature attack, fire breath will inflict damage and light targets on fire. A head about to breathe fire will raise itself higher, and open its mouth to reveal small flames. Heads breathing fire can't track the target as quickly or accurately, so speed is the best way to avoid being hit by this attack.

The fire breath has a maximum range of around 20 blocks from the center of the Hydra. The Hydra seems to be protected by magic or other powers that nullify attacks from beyond the maximum range of its breath weapon.

Explosive Bombs[edit]

Heads about to attack with bombs will raise up and emit smoke from their mouth. The Hydra spits three bombs at a time, which detonate immediately upon contact with another creature, or after a short time on the ground. The bombs are highly kinetic and will bounce if attacked. Reflecting bombs back at the Hydra is a good way to deal damage, especially if you can hit them into an open mouth.

The bombs usually don't damage the surrounding terrain, but if the Hydra sees its target hiding behind a barrier, it can fire a bomb that blasts with the power of a TNT explosion.

Bombs have a range of around 24 blocks from the Hydra.

Bite Attack[edit]

If tempted by a sufficiently close target, the Hydra will attack with its powerful jaws. This is a great opportunity to use swords or other close range weapons to attack the Hydra's open mouth directly, but be sure to move before the head follows through with the lunging bite attack. The bite deals massive damage to anything unlucky enough to be hit.


Slaying a Hydra is highly rewarding. First off, slaying a Hydra will give the player access to the minerals found within the Hydra Lair. The Hydra drops several dozen Hydra Chops, an overpowered, extremely nourishing and satiating food item that also gives regeneration powers for a short time. Also included are several doses of the Hydra's Fiery Blood, which can be combined with Iron Ingots to make powerful weapons and armor. Finally there is a Hydra Trophy item, which is highly decorative and prestigious.

If the mod Immersive Engineering is installed, the Hydra will also drop one Epic Shader Grabbag.


If you are playing according to the Progression system, the air in the fire swamp will be thick with flying cinders and ashes. You will be unable to enter the fire swamp without catching fire. Defeating the Minoshroom will allow you to enter the area safely.

Defeating the hydra and obtaining some of its Fiery Blood will complete the Swamp phase of the Progression. If the Hydra was the last of the three bosses to defeat, the Highlands shall be unlocked.

Twilight Forest Creatures
Passive Bighorn Sheep | Boar | Deer | Dwarf Rabbit | Fireflies | Penguin | Raven | Squirrel | Tiny Bird
Hostile Adherent | Block-and-Chain Goblin | Carminite Broodling | Carminite Ghastguard | Carminite Ghastling | Carminite Golem | Death Tome | Fire Beetle | Goblin Knight | Harbringer Cube | Hedge Spider | Helmet Crab | Hostile Wolf | King Spider | Kobold | Maze Slime | Minotaur | Mistwolf | Mosquito Swarm | Pinch Beetle | Redcap Goblin | Redcap Sapper | Roving Cube | Skeletal Druid | Slime Beetle | Snow Guardian | Stable Ice Core | Swarm Spider | Towerwood Borer | Troll | Unstable Ice Core | Winter Wolf | Wraith | Yeti
Progression Bosses Naga | Lich | Minoshroom | Hydra | Knight Phantom | Ur-ghast | Alpha Yeti | Snow Queen | Giant
Special Questing Ram