The Undergarden

Currently, the Undergarden is the only dimension added to the game by the mod.

How to Access
To enter the Undergarden, one must create the Catalyst and a suitable portal frame. A frame can be created using any arrangement of Stone Bricks, Depthrock Bricks, and Shiverstone Bricks in the shape of a Nether portal. To activate the portal, right click on the inner bottom face of the frame while holding the Catalyst.