Ala Horde

A global kill counter is kept for each hostile species, covering zombies, skeletons, creepers, witches, endermen, blazes, ghasts, withers and ender dragons, plus wardens. Each 25 player kills of a species raises its level, which increases its health, damage, speed and experience, and new spawns of that species come out stronger. Progress is stored in the world's SavedData and shared across all players on the server.

Every spawned mob gets a styled level label above its head, colored by tier: gray for level 1, white for 2 to 5, yellow for 6 to 10, gold for 11 to 15 and red for 16 to 20. The label is hidden behind solid blocks, so it cannot be used for X-ray cheating, and it only shows when a player has line of sight to the mob. Bosses such as the wither, ender dragon and warden are included by default, with their attribute base values left as they are and their boss AI phases intact.

Ala Horde is a server-side mod that requires Fabric API on Fabric. Vanilla clients can join a server running it without installing anything. The mod is open source under the MIT License and is published for Fabric and NeoForge, for game versions 26.1.2 – 26.2. Its settings live in serverconfig/alahorde-server.toml and can also be edited in-game on the Mods AlaHorde Settings screen.