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EnvironmentUnderground Mushroom
AI TypeCrabulon AI
Damage0 (Passive)
40 / 64 / 80 / 92 (Contact)
28 / 44 / 55 / 63 (Mushroom)
40 / 80 / 100 / 115 (Slam)
Max Life3,000 / 4,800 / 6,400 / 11,088
Defense 12
KB Resist100%
Grants buffMushyMushy
Buff durationInfinite (while passive)
Buff tooltipIncreased defense and life regen
Immune toGlacial StateTemporal SadnessConfused
Coins4 Gold Coin
Crabulon map.png
Map Icon

Crabulon Trophy.png "A crab and its mushrooms, a love story." Crabulon Trophy.png

Crabulon is a Pre-Hardmode boss. It has the appearance of a giant, grey, fungus-covered crab, with several glowing mushrooms attached to it.

Spawn[edit | edit source]

Crabulon can be spawned in a Mushroom biome by using the Decapodita Sprout.

Behavior[edit | edit source]

When spawned, Crabulon will be passive towards the player, completely still and dealing no contact damage. While Crabulon is passive, the player is granted the Mushy buff, increasing defense by 5 and life regen by 1. It will become hostile if the player attacks it or after a few seconds have passed.

Once hostile, Crabulon will begin walking around and jumping at the player, all while firing series of mushroom spore projectiles. It also starts summoning small Crab Shroom minions, which slowly float downward while drifting towards the player.

Attacks[edit | edit source]

  • Launches mushroom spores at the player, which are affected by gravity.
    • Damage and speed of the mushrooms increases at 50% health and again at 10% health.
  • Slams its claw onto the ground, dealing damage around it. After stomping the ground, Crabulon jumps towards the player.
  • Spawns drifting Crab Shrooms as it takes damage.

In Revengeance Mode[edit | edit source]

  • Crab Shrooms drift quicker and fall faster.
  • Falling walls of evenly-spaced mushrooms are occasionally summoned above Crabulon.
  • Crabulon jumps and moves faster.

In Death Mode[edit | edit source]

  • Crabulon jumps higher and summons more Crab Shrooms.
  • Fires sprays of mushroom spores more frequently.

Summons[edit | edit source]

Crab Shroom
Crab Shroom.png
TypeFlying Enemy
EnvironmentMushroom Biome
AI TypeCrab Shroom AI
Damage25 / 50 / 62 / 71
Max Life25 / 50
Defense 0
KB Resist25%
Immune toConfused

Aftermath[edit | edit source]

Notes[edit | edit source]

  • If Crabulon is stuck and cannot get to the player, it can swim through blocks, similar to the Mourning Wood and Everscream.

Tips[edit | edit source]

For more elaborate strategies on defeating Crabulon, including weapon and arena recommendations, see Guide:Crabulon strategies.
  • The player should try to stay above Crabulon, as its stomp attacks deal great amounts of damage. However, you still have to dodge the exploding mushrooms and Crab Shrooms.
  • In Revengeance and Death Mode, move slowly during Crabulon’s falling mushroom wall attack in order to easily dodge them.
  • Summoning Crabulon in an artificial mushroom biome above ground can offer much more room for dodging than summoning Crabulon underground.
  • The Bladecrest Oathsword can make quick work of Crabulon, as its projectiles and high base damage make it an excellent weapon at this stage of the game.
  • The Barinade can make quick work of the Crab Shrooms and Crabulon provided the player has ranger boosting accessories equipped.
  • Spell Tomes such as the Frost Bolt or Coral Spout are extremely effective against Crabulon.
  • Using the Sun Spirit Staff can be a good way to avoid the Crab Shrooms, as the Sun Spirit can knockback incoming shrooms, although don’t rely on the Spirit for damage.
  • The Crystalline’s multiple projectiles can effectively destroy Crab Shrooms and Crabulon itself.
  • Accessories that boost jumping such as a Cloud in a Bottle can be a powerful asset to the player, making dodging easier.

Trivia[edit | edit source]

  • Crabulon's theme is 1NF3$+@+!0N, which was composed by the artist DM DOKURO.
    • When 1NF3$+@+!0N played through a vectorscope, portions of the song create shapes that resemble mushrooms.
    • The theme's name is read "Infestation".
    • If the Calamity Music add-on mod is disabled, Boss 4 will play instead.
  • In previous versions of the mod, Crabulon's stomp attack was able to destroy non-mushroom biome blocks.

Lore[edit | edit source]

Calamitas' legendary ocean incineration killed off countless creatures, boiling them alive or leaving them for dead in an inhospitable environment. The large but docile crabs that once roamed the ocean floor sought refuge underground; instinct guided them to the dank caves most resembling their former habitat...but it was simply not enough. The crabs perished in fields of luminescent mushrooms, their corpses becoming host to innumerable fungi. Only the barest scraps of meat remain in their parasite-ridden husks, compelled to move and feed even in death.