Biological Infestation Add-on 1.21+

Mod Biological Infestation turns your world into a nightmarish place filled with infected creatures and dangerous infected structures in Minecraft. The hostile environment will gradually grow in power, meaning you will need to constantly strengthen yourself to withstand the monsters.
Genetic Infiltrator
Seeks to infect others
Health: 10 hearts
Damage: 4 hearts

Infected Human
Infected zombie
Has 2 stages where it becomes stronger
Health: 15-30 hearts
Damage: 5-10 hearts

Infected Pig
Has 2 stages where it becomes stronger
Health: 8-16 hearts
Damage: 3-5 hearts

Infected Cow
Has 2 stages where it becomes stronger
Health: 10-20 hearts
Damage: 4-6 hearts

Infected Tendril
Health: 15 hearts
Damage: 8 hearts

Regenerating Infected Block
Decoration

Infected Block
Can spawn Genetic Infiltrator when stepped on

Infected Fungus
Decoration

Infected Grove
New structure



Changes in the new version
Updated to the latest version of the game
Fixed bugs



