ReBeta

ReBeta alters ore generation so that coal ore spreads evenly through the world height instead of following the trapezoid-like curve used by current vanilla generation, with -64 as the lower world height limit. Gold ore is spawned the same way, and diamond ore is no longer discarded when it would be exposed to air. The changes are meant to recreate the feel of older Minecraft builds, from the Beta era, for players who want that style of world.

The author describes the mod as very much a work in progress, meant to be played with a work-in-progress modpack rather than on its own. The page is expected to receive a fuller description and a gallery later. Because the mod changes world generation, it is most useful on new worlds, and a player can judge its behavior more fully inside a custom modpack. The license is Apache License 2.0, and the code is not open source. Files exist for Fabric only, and the environment is Client and server, so the server and every player need the mod. Fabric builds cover 1.20 – 1.20.6, with 1.8.0 for 1.20.1 as the latest file, published on 2026-10-11.