CurseForge · Minecraft mod
Zombie Improvements
Improves zombie leader and reinforcement mechanics and fixes a few bugs
Quick answer
Which Zombie Improvements release matches 1.21.8 Fabric?
Zombie Improvements 1.0.5 for Fabric 1.21.8 targets 1.21.8 with Fabric. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. 1 required mod needs a matching file.
Where it goes
Is Zombie Improvements required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does Zombie Improvements 1.0.5 for Fabric 1.21.8 need?
1.0.5 for Fabric 1.21.8 on 1.21.8 Fabric. Every mod below is checked against that same setup.
Install Fabric API, Fzzy Config, Fabric Language Kotlin first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match. 3 come through another mod in the chain.
3 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Zombie Improvements without breaking your instance.
Built for Zombie Improvements 1.0.5 for Fabric 1.21.8 on 1.21.8 Fabric. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.0.5 for Fabric 1.21.8. It targets 1.21.8 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API, Fzzy Config, Fabric Language Kotlin first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match. 3 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.0.5 for Fabric 1.21.8. It opens that exact file at the source.
About this project
What does Zombie Improvements add?
Zombie Improvements
This mod improves zombie leader and reinforcement mechanics and fixes a few bugs with them.
What?
If you didn't even know these were a thing, here's a rundown from the Minecraft wiki:
On all difficulty levels, damaged zombie mobs (including husks, drowned and even zombified piglins) call all other zombies within a 67×21×67 to 111×21×111 area centered on the attacked zombie to target the attacker.
In Hard difficulty, zombies can spawn additional zombies to "help" when damaged. Each zombie has a "likeliness to call reinforcements" statistic ranging from 0–10%, and "leader" zombies (0–5% depending on regional difficulty) get a bonus of 50–75 percentage points to the stat.
On Hard difficulty, zombies have a 5% chance to spawn as leaders. Leader zombies can spawn other zombies as reinforcements.
So what does this mod do?
There are a few issues with these mechanics:
- You can't tell if the zombie you're attacking is a leader or not.
- There is no visual/audio cue when zombies spawn additional reinforcements.
- There are a few bugs which make these mechanics less relevant.
This mod alleviates all of these issues by:
- Adding a red aura effect around leader zombies, identical to the charged creeper effect, but red color.
- Adding unique textures and sounds for leader zombies.
- Increasing the size of zombies that are leaders.
- Adding a sound that plays when a zombie spawns in additional reinforcements. The sound that will be played is the block breaking sound of the block the freshly spawned zombie is standing on, played 5 times in a span of 2 seconds.
- Appending a "Leader" prefix to the name of the leader mob.
- Fixing two vanilla bugs, namely MC-219981 and (1.21.1 only) MC-14800.
There's also a few additional tweaks:
- Configure the attack damage of leader zombies. By default, it's slightly increased compared to normal zombies.
- Configure the spawn chance for leader zombies.
- Allow only leader zombies to spawn additional reinforcements.
- Prevent mob spawners from spawning leaders.
- Prevent zombies spawned by mob spawners from spawning additional reinforcements.
Project description from CurseForge.
Pick your setup
Zombie Improvements by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
1 loader build26.1.2
2 loader builds26.1.1
2 loader builds26.1
2 loader builds1.21.11
2 loader builds1.21.10
2 loader builds1.21.8
1 loader build1.21.1
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Zombie Improvements versions and loaders
1.0.5 for Fabric 1.21.8
zombieimprovements-1.0.5+1.21.8.jar
1 Oct 2025
1.0.4 for Fabric 1.21.8
zombieimprovements-1.0.4+1.21.8.jar
26 Sept 2025
1.0.3 for Fabric 1.21.8
zombieimprovements-1.0.3+1.21.8.jar
12 Sept 2025
1.0.2 for Fabric 1.21.8
zombieimprovements-1.0.2+1.21.8.jar
1 Sept 2025
1.0.1 for Fabric 1.21.8
zombieimprovements-1.0.1+1.21.8.jar
30 Aug 2025
1.0.0 for Fabric 1.21.8
modid-1.0.0+1.21.8.jar
29 Aug 2025
Looking for an older file? The official CurseForge project page is in Resources.