Terrain Diffusion

When a player creates a world, the Terrain Diffusion world type is chosen from the list, and the Customize button opens per-world settings. The World Scale setting is an integer from 1 to 6 and sets how many real-world meters one block represents: at scale 1 a block is 30 meters, at scale 2 it is 15 meters, and so on. Newly created worlds assume a tallest point of 10000 real-world meters, so explorers can scout continents, mountains, islands and other terrain before going far. The value is saved with the world and affects how it generates from then on.

The mod runs on the server side only, so players join without installing it. The server needs a Fabric setup with the Fabric API, along with a large memory allocation: the models take about 2.5GB of RAM, so the server's memory should be increased to account for this. The GPU and CPU requirements differ by platform. Windows can use a GPU, while Linux runs on the CPU, and the CUDA build needs a proper CUDA and cuDNN installation. The current file is 2.2.0-windows for 1.21.11, published 2026-05-12, and files exist for 1.21.1 and 1.21.11.