How to Build and Activate a Bismuth Portal

Crafting and Assembling the Portal Frame

Craft Bismuth Portal Frame blocks using your harvested bismuth materials. Arrange these frames into a portal structure—similar to how you'd construct a Nether portal, but using bismuth blocks instead. Plan your frame layout carefully, as the structure must be properly formed for activation to work.

Using the Bismuth Portal Chisel

Obtain a Bismuth Portal Chisel from crafting or loot. Hold this tool in your hand and right-click on the completed Bismuth Portal Frame structure. This action finalizes the frame assembly and prepares it for spell activation.

Casting the Prismatic Portal Spell

Once the frame is assembled, cast the Prismatic Portal spell directly onto the frame. This spell will activate the gateway, opening a passage into the underground magic dimension. You'll see the portal become active and ready to enter.

Step through the activated portal to access the vast underground realm filled with themed biomes like Flesh, Heavenly, and Volcanic regions.