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  • Marrow item spriteold Marrow item sprite
Stack digit 1.png
Uses ammoArrows
Damage53 / 40 (Ranged)
Knockback4.7 (Average)
Critical chance9%
Use time19 (Very fast)
Velocity33 (not affected by ammo)
RarityRarity level: 5
Research1 required
Projectile created
  • Bone Arrow
    Bone Arrow
Obtained from Obtained from
Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
Skeleton ArcherSkeleton Archer.pngSkeleton Archer10.5%
The Marrow attacking Target Dummies, shooting Bone Arrows.

The Marrow is a Hardmode bow that has a 0.5*1/200 (0.5%) chance to be dropped by Skeleton Archers. On the Desktop version Desktop version, Console version Console version, and Mobile version Mobile version, it is capable of autofire.

When fired, the next available arrow will instead be converted into a special Bone Arrow, which is not to be confused with the visually similar Bone Arrow item. These Bone Arrows fire at higher velocities than average arrows and suffer minimal drop along their course, giving the Marrow a much straighter shot than most bows. However, while the used arrow's base damage is accounted for, special properties of converted arrows are entirely lost.

The Marrow has a base 9% critical strike chance, as opposed to the usual 4%.

Its best modifier is Unreal.


  • The Marrow will convert the Endless Quiver's arrows, allowing it to fire its special arrows indefinitely.
  • Venom Arrows and Cursed Arrows have the highest base arrow damage, making them more effective when used with the Marrow, even though the special properties are removed.


  • In real life, marrow is a flexible tissue found inside of bones.
  • Due to a change in stats with the update, the Marrow has gone from having lower overall stats to having higher overall stats than the Ice Bow.


  • Desktop 1.2.3: Slightly increased damage and slightly decreased use time.