ARK: Survival Evolved Wiki
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Rex Bone Costume
Rex Bone Costume
This costume can be used to make your Rex look just like a skeleton! Spoopy!
Stack size
Added in
Spawn Command
cheat gfi nerex 1 0 0
cheat giveitem "Blueprint'/Game/PrimalEarth/CoreBlueprints/Items/Armor/Saddles/PrimalItemCostume_BoneRex.PrimalItemCostume_BoneRex'" 1 0 0

The Rex Bone Costume is dropped by skeletal Alpha T-Rex Alpha T-Rexs during the ARK: Fear Evolved and ARK: Fear Evolved 2 event or crafted in a Cooking Pot Cooking Pot during the ARK: ARKaeology event. It can be applied to a tamed Rex to make it look like a skeleton.


During Fear Evolved, Alpha T-Rexes will spawn with a skeletal appearance. Killing and looting one of these creatures will yield a Rex Bone Costume
The Alpha Skeletal Rex's inventory must be looted by hand in order to get the costume. If you or your mount harvest the corpse, the costume will be lost.

The Rex Bone Costume can also be used to summon Witch Hat Skin Witch Hat Skins.

This skin can be unlocked by completing the Master Explorer Achievement, after which it will be available in your inventory whenever you respawn.

Achievement Master Explorer
Xbox One
Epic Games
Master Explorer

You discovered 90% of the Explorer Notes on the ARK!


  • Skeletal Rexes are Alphas, so be sure you're prepared for the fight.
  • While hunting for Alpha Skeletal Rexes, killing any other creatures you come across will allow room for more spawns, increasing your chances of finding one.
  • When you acquire a Rex Bone Costume, you will keep it, even after the event is over.
  • You currently cannot spawn with the text "BoneRex" on Xbox One because it includes "BoneR" which is censored. The workaround is to use the text "nerex" instead with the GFI command.