Anti-Portal Block

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Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
Anti-Portal Block
  • Anti-Portal Block item sprite
  • Anti-Portal Block placed
Stack digit 9.pngStack digit 9.pngStack digit 9.pngStack digit 9.png
Placeable✔️ (1 wide × 1 high)
Use time15 (Very fast)
TooltipPortals cannot be created on the surface of these blocks
RarityRarity level: 0
Buy1 SC
Sell20 CC
Research100 required
  • Internal Item ID: 4091 (Desktop, Console and Mobile versions)
  • Internal Tile ID: 496

The Anti-Portal Block is a Hardmode block that prevents portals made from the Portal Gun to form. This can be useful for map makers who want to make some places inaccessible by portals. They are purchased from the Traveling Merchant for 1 SC each.


  • The sprite of the Anti-Portal Block is a reference to the 2007 puzzle-platform video game Portal, where the darker-colored tiles disallow portal placing.

See also