
Darwin Mod 1.6.4 adds in the ability to cross-breed mobs and create entire new species! And yes, it does get really freaky. This mod adds a mob, but the particularity of this mob is that it has chromosomes with genes. Their genetics define their color, skin, shape, behaviour… There are billions of possibilities. In the wild you’ll meet some of them inspired by existing mobs in Minecraft or other animals.

You can make them mate as any pig or sheep with wheat. The child will inherit from its parents following the same biological laws than in real life including mutations. Then you can obtain phenotypes which couldn’t exist in the wild.
Each mob actually has the following components:
- A body (4 possible shapes)
- A head (3 possible shapes or none)
- A snout (3 possible shapes or none)
- Ears/horns (3 possible shapes or none)
- A tail (3 possible shapes or none)
- 2 rear legs (3 possible shapes or none)
- 2 front legs/arms (3 possible shapes or none)
- The speed it can move depends on the size of the legs
- Rotation of the body (from 0 to 90°)
- Color (16,581,375 colors)
- Skin (11 different skins)
- Dropped item (126 possibilities)
- AI and behaviour: depending on some genes, some tasks are added like “hunt cows” for example or “flee when hit” or “look for shade”.
- Other behaviours: burn in sun, hurt by water, immune to fire…
Screenshots:
The mob in different forms as it can spawn in the wild: fake pig, fake zombie, fake enderman, fake cow, fake slime and even… fake squirtle.

A child of a cow and a zombie in its larval state.

A child of a cow and a zombie in its adult state.











Darwin Mod 1.6.4 Download Links
For Minecraft 1.6.4
- Edition: Minecraft Java
- File type: .jar
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as 211319.mcaddon
- Download size: 80 KB
- Download link checked 30 Jul 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.