Rare Mob Spawn Mod

This addon fundamentally changes mob spawning mechanics by introducing structure-exclusive mobs into their thematically appropriate biomes. While these dangerous creatures spawn with reduced probability compared to normal mobs, their presence adds unpredictability and challenge to exploration. The mod expands beyond hostile mobs, allowing cats to appear in natural forest environments and enabling phantoms to spawn in specific biomes regardless of sleep patterns.

Biome Spawn Locations

• Nether Mobs: Blazes spawn in Basalt Deltas, Wither Skeletons appear in Nether Wastes, and Piglin Brutes can rarely be found in Crimson Forests and Nether Wastes. Zoglins have extremely rare spawns in Nether Wastes.


• Raid Mobs: Evokers, Pillagers, and Vindicators now spawn with low probability in Roofed Forests, bringing woodland mansion danger to natural biomes.


• Environmental Spawns: Breezes appear in Frozen Peaks and Muted Savanna biomes, while Phantoms spawn in Mesa biomes independently of player sleep patterns.


• Underground Threats: Cave Spiders spawn throughout underground areas, and Silverfish emerge below Y=20, making deep mining more dangerous.


• Passive Additions: Cats spawn naturally in Flower Forests, Jungles, and Taiga biomes beyond their traditional village locations.


• Universal Spawns: Endermites can spawn in any biome with very low probability, adding random encounters anywhere.

The mod maintains game balance by implementing varying spawn rates based on mob danger level. Extremely dangerous mobs like Piglin Brutes and Zoglins have minimal spawn chances, while less threatening additions like cats appear more frequently. This creates unexpected encounters without overwhelming players with constant threats.