Bosses

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Commander Vile

 Commander Vile is the first boss in It Lurks Below. He is found in The Corruption of It biome on the surface. Defeating him is part of the Tutorial Quests.

Strategy

• Commander Vile is very difficult to outrun, but you can prepare a column to block him, and make a hole to safely shoot through.
  
• This strategy works with  Sword and Shield and  Dual Swords as well.
  
• Using a  Scroll of Blessing may also help mitigate the danger.

Rewards

Commander Vile drops a random quality weapon on death, proportional in strength to the player's level.

Gath'ack the Soulgazer

 Gath'ack the Soulgazer is the second boss of It Lurks Below. He is found in a dungeon at the bottom of the Muddy Layer after the player receives the quest "It calls from below".

He has three attacks. In order of damage from weakest to strongest, they are: small projectiles that go from his body in a ring, a large projectile, and a beam that causes block destruction. In Nightmare, Gath'ack increases speed and fires the eye-beams in a random, star-like pattern.

Strategy

• Make sure you clear the Dungeon area before challenging Gath'ack and save as many health potions as possible.
• Make sure you pop several scrolls ( Scroll of Blessing ,  Scroll of Regeneration , etc).
• The eye-beams have a range cap, if you stand at the other side of the room, you can avoid taking the intense damage.
• Gath'ack fires the Eye-Beams after standing for a long time.

Note: Bosses are the same level as the monsters found outside of their room.

Rewards

• First time he is defeated, he drops the  Bag of recipes .
• A chance to drop some high quality items, including unique items.

Drackel the Flesh Ooze

 Drackel the Flesh Ooze is the third boss of It Lurks Below. It is found in its Boss Dungeon at the bottom of the Ice Layer. It consists of several eyes and a heart in the middle. It spawns little spiders that attack the player. The spiders inflicts the Darkness debuff, giving the player nearly zero vision. Once you killed every eye you can damage the heart for few seconds before eyes respawn and make the heart invulnerable again.

On nightmare difficulty the eyes will no longer be attached to the heart instead, they will be floating around the room. Now only one eye is able to be killed at a time, the others will have a ring of particles around them like the heart. Once you kill the eye that does not have a ring around it, some other eye will become vulnerable, repeat this until you have killed all the eyes and the boss becomes vulnerable for a time like in normal difficulty.

Strategy

• Make sure you clear the Dungeon area before challenging Drackel and save as many health potions as possible.
• Make sure you pop several scrolls ( Scroll of Blessing ,  Scroll of Regeneration , etc).
• Build  platforms above the ground and under the eyes. It helps to avoid the spiders.
• Don't be afraid to recall during the fight and rest back up.
• Some people build walls around them and shoot through a gap in the wall.
• Make sure that you have Cold Resistances as Drackel's Eyes can freeze you often.
• The Spiders' Blinding Attack also increases your attack speed for whatever reason.

Note: Bosses are the same level as the monsters found outside of their room.

Rewards

• First time he is defeated, he drops  A large bag of recipes .
• A chance to drop some high quality items, including unique items.

The Tentacle of It

 The Tentacle of It is the fourth boss of It Lurks Below. It is found in a dungeon at the bottom of the Slimy Layer after the player receives the quest ... It is a worm like creature, flying around the room in a set pattern.

Strategy

• The eyes that periodically spawn on top of you kill you in one hit!

Note: Bosses are the same level as the monsters found outside of their room.

Rewards

• First time it is defeated, it drops the  Another bag of recipes .
• A chance to drop some high quality items, including unique items.

Belzor Bloodeye

 Belzor Bloodeye is the fifth boss of It Lurks Below. He is found in a dungeon at the bottom of the Bloody Layer after the player receives the quest (name of the quest here). This is not the last layer, or the last boss of the game.

Strategy

• Make sure you clear the Dungeon area before challenging Belzor and save as many health potions as possible.
• Make sure you pop several scrolls ( Scroll of Blessing ,  Scroll of Regeneration , etc).

Note: Bosses are the same level as the monsters found outside of their room.

Rewards

• First time he is defeated, he drops the ...
• A chance to drop some high quality items, including unique items.

It, the Prince of Annihilation

 It, the Prince of Annihilation is the sixth and last boss of It Lurks Below. He is found in a dungeon at the bottom of the Fleshsore Layer after the player receives the quest An Audience with It. IT is the last boss of the game (pun intended).

Strategy

• Make sure you clear the Dungeon area before challenging It and save as many health potions as possible.
• Make sure you pop several scrolls ( Scroll of Blessing ,  Scroll of Regeneration , etc).
• It, the Prince of Annihilation is invulnerable while it has eyestalks remaining and while its minion, the Servant of Death, is deployed. Destroy the eyestalks and destroy the Servant or wait for it to return to be able to damage the boss.

Note: Bosses are the same level as the monsters found outside of their room.

Rewards

• A chance to drop some high quality items, including unique items.

Astaroth

 Astaroth is the seventh boss of It Lurks Below. He is found in a dungeon at the bottom of the Garnet Layer in the Badlands after the player receives the quest "Kill Astaroth".

Strategy

Hardmode is active if hearts are left up. Hearts can be found in the Mini Boss Dungeons

Note: Bosses are the same level as the monsters found outside of their room.

Rewards

• Gamma rune will drop if the boss kill grants experience.
• A chance to drop some high quality items, including unique items.