ModsJava
Relentless Undead
Relentless Undead is a mod that focuses on making zombies harder. This isn't a traditionally AI change but rather mechanic focused. Zombies will climb…
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
No known incompatibilities
Relentless Undead is an overhaul for vanilla zombies. It will add multiple mechanics that make it harder and more like the game World War Z.
- Config what you want on at once, everything can be turned on and off
- Zombie stacking
- Reenable zombies swimming
- Zombies ignore heights
- Zombies no longer burn in the sun
- Configure Zombie fall damage percentage (default is 20%)
Report bugs or join for fun in the Zarra Studios discord here: https://discord.gg/PVd6GNpvtW
Plans:
- Hive Mind (Make it so when zombies are in a group they stick together and look in a similar direction
A mod developed by Zarra Studios
Please report bugs to the discord or github
Code is open-sourced
This code is licensed under ARR
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- 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: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as relentlessundead-1.20.1-0.1.0-Beta-Hotfix2.jar — drop this file into the mods folder
- Download size: 34 KB
- Download link checked 27 Aug 2026 — working
These come from our own check of the pack file, not from the source page.