Once you load the mod only zombies will be able to spawn in your world, any other hostile mob will never appear.

Zombies will also now loot more items when killed, here's the full list of their drops :

Rotten Flesh (same as vanilla)
Bones (75%)
Zombies Skulls (30%)
String (25%)
Gunpowder (25%)
Iron Ingot (5%)
Gold Ingot (5%)
Redstone Dust (5%)
Slime Ball (5%)

Another feature of the mod makes zombies get stronger every few days :

Day 0 : Simple Vanilla MC Zombies
Day 5 : Speed 1
Day 15 : Speed 1 +Strength 1
Day 25 : Speed 2 +Strength 1
Day 35 : Speed 2 +Strength 2
Day 50 : Speed 3 +Strength 2 (with speed 3 zombies can run as fast as the player!)

The mod also adds new cosmetics block with the bones and skulls you loot from zombies. You can now build Skull Lamps or Bones Fences for example...

There's also new weapons like the Skull Club or the Bone Spear, there's also a new Bone Armor.

You can also now turn Rotten Flesh into leather, compact 8 rotten flesh in a carfting table and then burn it in a furnace to get leather.

Another feature are the new Rotten Flesh Blocks and Bone Baskets that will help you store the zombies loots.

This mod is made to be used in your zombie adventures worlds, so feel free to put it in your modpacks !

Zombies Only