IG: Ore Amplifier (Vein count)

Ore vein frequency is multiplied by a configurable factor. The default values raise vanilla ores to 200% and modded ores to 120%, so the common vanilla veins appear about twice as often by default. Fractional percentages such as 150% are rounded probabilistically, so the extra veins spread evenly across chunks without statistical drift. Settings can be changed in game through GameRules, and the mod also reads config files.

The mod scans the block registry on startup and detects blocks that contain ore. It creates an independent GameRule for each detected ore, for example one for a Techreborn tin ore or a Create zinc ore, and applies a global fallback rule to modded ores found later. A blacklist of placed features and blocks, set through the ore-amplifier:blacklist tag, lets datapacks exclude sensitive custom worldgen features. The mod requires Dasik Library and Fabric API, and it is published for Fabric only, for 26.1.2 and 26.2, with 1.3.20+26.2 as the latest file for 26.2.

The mod runs on the client and on the server, so both need it. Its source code is open source under the GNU General Public License v3.0 or later.