Undead Riders

The Fabric mod adds six types of undead horsemen that spawn naturally on the overworld surface. Each type rides its own mount and is tied to a fitting biome: zombie riders appear at night in most biomes except the desert, husk riders only in the desert, skeleton riders in most biomes except the desert, swamp and frozen areas, parched riders in the desert by day and night, bogged riders in swamps and mangrove swamps, and stray riders in frozen biomes.

The mod also adds nether variants, including zombified piglin riders with zoglins in the Crimson Forest, Nether Wastes, Bastion Remnants and Soul Sand Valley, and nether skeleton riders in the Soul Sand Valley. Spawning and difficulty are configurable. Armor is only given at a set probability, and a shield can drop from the rider's offhand. The config file is generated on first launch. With Mod Menu and Cloth Config API installed, the full settings are editable in game.

Undead Riders requires Fabric API. Open Parties and Claims is an optional dependency: when it is installed and openPartiesAndClaimsSupport is enabled, the mod checks the claim settings before spawning a rider, so a claimed area can block natural spawns. The mod is server-side only, so players join without installing it. It is open source under the GNU Affero General Public License v3.0 or later, and files are published for Fabric across 6 release versions, 1.21.11 – 26.3.