Simple Mob Buff System

Mobs rarely spawn with buffs, and the chance depends on the current local difficulty. A buffed mob receives status effects and gains a buff level that depends on how strong it is. Each buff is set to a maximum level, and the level assigned to a mob never exceeds that maximum. Once a buffed mob is killed, it drops additional rewards scaled to its buff level. Mobs spawned from spawners are excluded by default for balance reasons, and that restriction can be removed in the configuration.

The mod targets a balance that keeps vanilla mobs from becoming overpowered or showering players with overly generous loot. It is built only on mechanics that already exist in the game, so it needs no custom AI. Players can install it and play without opening the configuration at all, because the defaults are already balanced. Fabric API is required on Fabric, and Fzzy Config is required on both loaders. Mod Menu gives access to the configuration screen, where each option has a description, suggestions appear for status effect and item fields, and most settings can be changed.

Servers that run it need every player to install it too. The project is open source under the MIT License. Files are published for Fabric and NeoForge across 10 release versions, 1.21 – 26.3.