Spore Sac

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Expert mode icon.png
Expert and Master Mode-Only Content: This information applies only to Expert Mode, Master Mode, and worlds with these modes.
Desktop versionConsole versionMobile version
Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
Spore Sac
  • Spore Sac item sprite
Stack digit 1.png
TooltipSummons spores over time that will damage enemies
RarityRarity level: Rainbow
Sell4 GC
Research1 required
Inflicts Debuff
Debuff tooltipSlowly losing life
Duration5–10 seconds
Projectiles created
  • Spore Trap
    Spore Trap
  • Spore Trap 2
    Spore Trap 2
  • Spore Gas
    Spore Gas
  • Spore Gas 2
    Spore Gas 2
  • Spore Gas 3
    Spore Gas 3
Obtained from Obtained from
Expert mode icon.png Expert
Master mode icon.png Master
Treasure Bag(Desktop, Console and Mobile versions)
Treasure Bag (Plantera)Treasure Bag
(Desktop, Console and Mobile versions)
Using the Spore Sac to attack Mimics and a Target Dummy. Notice how the cloud damages enemies multiple times and inflicts the Poisoned debuff.

The Spore Sac is a Hardmode, post-Plantera accessory that continuously spawns multiple stationary floating spores around the player that act as homing mines. When an enemy comes within range, they slowly swarm the enemy and cause small explosions on contact, dealing about 400 classless damage over the course of 1 second. Spores have the ability to pass through blocks to reach enemies and will inflict the Poisoned debuff for 5–10 seconds. They have a small area of effect that can hit multiple targets. The Spore Sac is always dropped from Plantera's Treasure Bag in Expert Mode.

Spores can only spawn near blocks, or on background walls, that are up to 25 tiles away from the player. Each spore fades after 20 seconds and is replaced by a new one while a valid area exists in range. Flying in open areas (eg. via Wings or Mounts) with no walls or blocks in range will not result in any spores spawned. When spawning near blocks, with no background walls, only a single layer of spores spawns, floating within about 3 tiles of the blocks. On background walls, spores can spawn anywhere in mid-air.


  • Spores home in on enemies within 15 tiles of their position.
  • Spores will not actively home in on destructible enemy projectiles or critters, but will explode and cause damage if they happen to make contact with them.
  • A maximum of 10 spores can be on-screen at any given time. Spores will also not spawn within 2 tiles of each other.
  • Spores cannot spawn from within liquids, but spores spawned elsewhere can home in on enemies that are in liquids.


  • Spores spawn slowly and move slowly, but are useful while the player stands still or remains in a small area, and can intercept incoming enemies easily. They are less useful while moving.
  • Like most weapons that travel through blocks, spores are especially useful when dealing with enemies that move through blocks, since spores can engage enemies before those enemies can reach the player. This can be especially useful in more confined cave systems, like the Dungeon and Underground Jungle, where players are often attacked through blocks.
  • Spores do not seem to trigger the teleportation effect of Hardmode Dark Casters in the Dungeon, thus being an efficient way of killing them.
  • Spores can be useful for automatically fending off minor attacks while building, or for AFK farms, as the spores will automatically damage enemies and are not hindered by blocks.
  • Ice blocks created by the Ice Rod can be used to spawn clusters of spores when in the air without any other blocks or walls.


  • Desktop 1.4.4:
    • Movement speed of the spores has been dramatically increased.
    • Range at which spores will begin chasing targets increased by 20%.