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Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
Map Icon Deerclops.png
Map Icon
Classic Mode.png Classic
Expert Mode.png Expert
Master Mode.png Master
AI TypeDeerclops AI
Damage204060 (melee)
265278 (Ice Spike)
3672108 (Debris)
204060 (Shadow Hand)
Max Life7000/11900/15172
KB Resist100%
Immune toConfusedShimmering
Inflicts debuffs
Inflicts debuffs
Inflicts debuffs
Debuff tooltipMovement speed is reduced
Chance100% (Roar)
Duration12 seconds24 seconds30 seconds
Debuff tooltipYou can't move!
Chance100% (Ice Spike)
Duration0.33 seconds0.67 seconds0.83 seconds
Coins5 GC12 GC50 SC
Projectiles created
Projectiles created
Projectiles created
  • Ice Spike
    Ice Spike
  • Debris
  • Shadow Hand (hostile)
    Shadow Hand (hostile)
Map Icon Deerclops.png"The chilly one-eyed monstrosity from a foreign land."Map Icon Deerclops.png
For the Deerclops pet, see Deerclops Eyeball.

Deerclops is a pre-Hardmode boss encountered in the Snow biome. Fighting Deerclops is not required for game progression, but defeating it rewards the player with coins and other useful items.

While Deerclops is alive, its exclusive music Deerclops will play. When Otherworldly music (Desktop, Console and Mobile versions) is enabled, the track Boss 2 (Otherworldly) will play instead.


Deerclops can be summoned manually by using a Deer Thing at any time in the Snow biome.

Deerclops can also spawn naturally at midnight during a Blizzard on the surface Snow biome after fulfilling these conditions:[1]

  • At least one player in the world has at least 9 defense or at least 200 health.
  • There is a player at the surface Snow biome.
    • There must be no town NPCs within a 240×135-tile rectangle centered on that player.
  • There must be no other bosses or hostile events (except the Blood Moon) active.
  • If in Don't dig up or Get fixed boi worlds, Deerclops will only naturally spawn in Snow biomes on the Surface layer, where the Blizzard visual effect is not displayed.[2]
    • Deerclops will not spawn at the Cavern layer where the Blizzard effect is displayed.

Deerclops can still spawn naturally even if the Journey Mode's enemy spawn rate slider is set to 0×.

If Deerclops has previously been defeated in the world, there is only a 1/4 (25%) chance for it to spawn naturally.


Deerclops (invulnerable).gif
Deerclops in its invulnerable state.
  • Deerclops has four / five attacks:
    • If it is close enough to the player, Deerclops will raise its arms and smash the ground, summoning an escalating wave of Ice Spikes that quickly travels toward the player. Every third consecutive wave does not travel as far as the standard version, instead spreading outwards from both directions. Ice Spikes freeze the player for 0.33 / 0.67 / 0.83 seconds.
    • If it is not close enough to its target to use the Ice Spikes attack, Deerclops will "scoop" and then throw numerous chunks of Debris into the air, which travel in large, vertical arcs before falling back down. The chunks of Debris can pass through blocks. The visual appearance of the Debris changes depending on the blocks Deerclops is standing on while performing the attack. However, this does not affect the amount of damage the Debris chunks deal to the player.
    • Deerclops will occasionally stand in place and roar, inflicting the Slow debuff on all players within 50 tiles[3] for 12 / 24 / 30 seconds, unless they are already affected by the debuff.
    • If the player is above Deerclops for enough time, it momentarily remains still before roaring and summoning five Shadow Hands around the player.
    • In Expert Mode, Shadow Hands will be periodically summoned that either move toward the player slowly, move towards the player quickly and curve, or spin in place. Shadow Hands predict the player's movements and are summoned more frequently as Deerclops's health is lowered.
  • If the player is more than 30 tiles away from Deerclops, it becomes cloaked in a shadowy aura, emits black smoke particles, turns a dark shade of purple while its eye turns magenta in coloration, and two reddish, semi-transparent afterimages begin closely orbiting around it. Deerclops is completely immune to damage while in this state until the player is again within 30 tiles of its current location, causing it to revert back to its regular appearance and behavior.


  • When Deerclops is alive, the opacity of the Blizzard visual effect will be reduced.
  • If all players are dead or there are none nearby, Deerclops will wander around/go to the tundra it spawned in instead of immediately despawning. Note that if all players die in a virtual tundra biome deerclops will wander around there instead of its original spawn. This will happen until a player gets close to the boss, at which point the fight will resume as normal. Once one in-game day (24 real-world minutes) has passed since Deerclops's spawn, it will despawn as soon as no players are near. Leaving and re-entering the world will also cause it to despawn.
    • Like all other bosses, Pylons cannot be used while the Deerclops is alive in a world.
  • Deerclops cannot pass through solid blocks, but if the player is above it, far enough away, and Deerclops cannot reach them, it will quickly rise through the blocks in order to reach the player.
  • Defeating Deerclops is not required for the Slayer of Worlds achievement.


Achievement An Eye For An Eye.png
An Eye For An Eye • Defeat Deerclops, the chilly one-eyed monstrosity from a foreign land.
Defeat Deerclops for the first time. (Desktop, Console and Mobile versions)
Category: Slayer Slayer


For more elaborate strategies on defeating Deerclops, including weapon and arena recommendations, see Guide:Deerclops strategies.
  • There are no prerequisite bosses that are required to be defeated in order to summon this boss. However, Deerclops's strength may warrant waiting until the player has defeated Skeletron to fight it.
    • With sufficient skill, the Deerclops can be defeated earlier in game progression, which can be helpful to the player during pre-Hardmode.
  • A Warmth Potion is useful when fighting Deerclops, as the boss is affected by its buff. In addition, one may find it useful to bring a Hand Warmer to the battle, since the Chilled and Frozen debuffs can easily cause the player to die quickly if inflicted.
  • Building a platform of non-solid blocks about 6 tiles (twice the height of the player) up in the air, along with staircases made of solid blocks on either side to allow Deerclops to get on, can elevate it high enough above the ground to prevent the boss from using its debris attack entirely, making the fight much easier.
  • Due to being able to inflict Slow from a large range, accessories like the Anklet of the Wind or Magiluminescence alongside Swiftness Potions can help make the fight much more manageable.
  • Avoid lingering directly above Deerclops, as the Shadow Hands it summons in this situation are very dangerous.
  • The player can run between Deerclops's legs without taking damage. This is useful for avoiding the first two Ice Spike attacks, but the player should not stick around for the third.
  • Players should place their spawn point away from where Deerclops can wander, as it can stay around the spawn area.
    • This is especially recommended for Mediumcore players, as they can be left defenseless near Deerclops if they die in the middle of the fight.
  • The Frozen debuff from the Ice Spike attack is capable of interrupting a player's extending grappling hook, causing them to drop to the ground. Avoid moving over large gaps to prevent unnecessary damage.


Deerclops Leg.png
The removed Deerclops Leg NPC.
  • Deerclops is part of the Don't Starve Together crossover. Many of the items of this crossover are dropped by Deerclops.
  • Deerclops's purple invulnerable form in Terraria resembles its Winter's Feast form in Don't Starve Together.
  • Deerclops is a portmanteau of deer and cyclops.
  • It is the only non-event boss in Terraria to not despawn immediately after killing the player.
  • The Deerclops fight is one of two boss fights that consist of a single destructible entity, the other being the Empress of Light.
    • All other boss fights are composed of either multiple bosses, multiple segments, or summoned minions that play a part in their boss fights.
    • Between the versions 1.4.3 and, there was an NPC named DeerclopsLeg in the files which did not appear during the fight. It was invincible[4] and had its own AI[5]. It was removed in the 1.4.4 update, with its NPC ID replaced with that of the Stinkbug.
  • Deerclops is the first non-event crossover boss, as well as the first pre-Hardmode crossover boss.
  • Deerclops is one of seven bosses with exclusive boss music, the others being the Queen Bee, Queen Slime, Plantera, Empress of Light, Duke Fishron, and Moon Lord.
  • The BestiaryBestiary entry for Deerclops: "Hailing from a distant land, this cyclopic monstrosity lurks in cold places, wreaking havoc on those who disturb it."


See also


  • Desktop 1.4.4:
    • Now grants an achievement upon defeat.
    • Now has a chance to drop Dizzy's Rare Gecko Chester.
    • Now takes up more enemy slots, reducing or outright eliminating enemy spawns during its fight.
    • Removed the unused Deerclops Leg NPC.
  • Desktop
    • Deerclops's health now scales at a modified rate in Expert and Master, like other bosses.
    • Fixed an issue where Deerclops's health did not scale up with increased player count in Expert/Master multiplayer games.
    • Now only remains present in the Snow biome for 1 day when no players are present, instead of 3 days.
    • Deerclops's boss health bar will disappear from the screen when suitably far enough away from it that the boss fight is not active.
    • Defense increased from 0 to 10.
    • After defeating Deerclops, it now only has a 25% chance to spawn again naturally under proper conditions. This was previously a 100% chance.
    • Now drops Healing Potions.


  1. Information taken from the Desktop version Desktop source code, method UpdateTime() in Terraria.Main.cs.
  2. Information taken from the Desktop version Desktop source code, method UpdateBiomes() in Terraria.Player.cs.
  3. Information taken from the Desktop version Desktop source code, method AI_123_Deerclops() in Terraria.NPC.cs. There may be inaccuracies, as the current Desktop version Desktop version is
  4. Information taken from the Desktop version Desktop source code, method SetDefaults() in Terraria.NPC.cs.
  5. Information taken from the Desktop version Desktop source code, method AI_124_DeerclopsLeg() in Terraria.NPC.cs.