Ferium

The mod forces the GLFW windowing library to initialize a native Wayland window instead of falling back to the X11 path. Mouse input is smoother, scaling is corrected, and performance can improve on current Linux distributions. On Windows and macOS the Wayland step is turned off automatically, so startup is not affected there.

Ferium is described by its author as an experimental graphics mod that adds visual effects while focusing on modern graphics APIs and native integration. Its feature set includes volumetric clouds, cascaded shadow maps with soft PCF filtering and warm light, and thin refracting yellowish caustic patterns under water, all intended to make the scene look more detailed.

Ferium is a client-side only mod: only the client needs it, and a server can run without it. It is published for Fabric only, for Minecraft 26.2, with a single alpha file as the newest release, and it is released under the MIT License but is not open source.