ModsJava
Zombie Island
Zombie mod that adds many types of walkers with different abilities. Free Minecraft Java mod for 1.21.1, 1.20.1, 1.20.6.
⬇ Download on CurseForgeThis mod adds many types of zombies, from simple infected ones to their own unusual individuals. There are also unique infected who can give a good rebuff to the player and also drop quite valuable loot.
For working mods neebs GeckoLib
https://www.curseforge.com/minecraft/mc-mods/geckolib
Zombie Island is a free Minecraft Java mod. Compatible with Minecraft 1.21.1, 1.20.1, 1.20.6. Downloaded 629,027 times (via CurseForge). Download it and open it directly in the game.