About Zombie Apocalypse Core [ZAC]
From ModrinthNecessity for zombie apocalypse modpacks. Day counter, Entity multiplier and entity spawn prevention (blocklist), day light resistance (no daylight burning), customizable zombie drops, zombies break blocks, and more.
Zombie Apocalypse Core
Necessity for zombie apocalypse modpacks.
Continuation of the Zombie Apocalypse Core mod.
If you have any feature ideas, open an issue on the GitHub and if its relevant, it may be added
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<font color="#D7742F">NeoForge</font>
<font color="#DBD0B4">Fabric</font> <td> None
None
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The <font color="#DBD0B4">Fabric</font> version needs <font color="#8F3FD1">Fabric API</font> as a dependency.
Compatibility
No known incompatible mods found yet, and no mod has been given explicit compatibility either.
If you find incompatible mods, please open a GitHub issue so they can be added here.
Features
<pre> 'How configurable each feature is' - the measure ☔ if on/off values, ☔☔ if editable lists/numerical values, and ☔☔☔ if on/off with editable lists/numerical values)
Or simply, more umbrellas more configuration potential </pre>
- Zombies can break blocks (☔☔☔)
- Additional zombie drops (☔☔☔)
- Entity multiplier (☔☔☔)
- Entity blocklist (☔☔)
- Daylight resistance (☔☔)
- Heavily armored zombies (☔)
- Day counter (☔)
Config
The config file is present at your_minecraft_game_dir/config/zac-common.toml > your_minecraft_game_dir is the same directory where your mods folder is present
blockMinimumHardness and blockMaximumHardness
The most confusing part (which I assume) are <font color="#8E8DBE">blockMinimumHardness</font> and <font color="#E57A44">blockMaximumHardness</font>
You would only need to increase/decrease <font color="#E57A44">blockMaximumHardness</font> as zombies not being able to break blocks such as dirt but be able to break blocks like obsidian is not what you usually want.
Check this minecraft.wiki page out for block hardness measures which you can reference here
Entities and items with a minecraft: prefix
<font color="#53917E">minecraft</font>:entity or <font color="#53917E">minecraft</font>:item refers to something already present in Minecraft, same names are used as they are in /summon minecraft:entity or /give @a minecraft:item, like for example when using /give @s minecraft:diamond 20
Mod namespaces should work too but have not been tested > <font color="#843B62">mod_namespace</font>:entity or <font color="#843B62">mod_namespace</font>:item
Additional zombie drops
= is used as a separator here, so:
<font color="#53917E">minecraft:carrot</font>=<font color="#FFAC1C">0.1</font>
Here, minecraft:carrot is the item and 0.1 is the percentage, they are separated by =
So basically, they are item=chance
If you want, say, a gold ingot to have a 25% chance of dropping, we do 25/100 and get 0.25
So that would be <font color="#53917E">minecraft:gold_ingot</font>=<font color="#FFAC1C">0.25</font>
> <font color="#FFD700">! ! ! This does not not change the default zombie drops, it only adds a chance to drop extra items.</font>
Highlights
From source dataGame versions
Supports 2 Minecraft versions, the newest being 1.21.1.
Loaders
Runs on Fabric, Forge and NeoForge.
Footprint
Rated a light load on a server.
Zombie Apocalypse Core [ZAC] on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Required on the server
- Server type needed
- Fabric, Forge, NeoForge
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 1.2.0, released 2026-10-23
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Fabric | 1.20.1 to 1.21.1 (2 versions) | 1.21.1 |
| Forge | 1.20.1 | 1.20.1 |
| NeoForge | 1.21.1 | 1.21.1 |
From 9 recorded builds of Zombie Apocalypse Core [ZAC].
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 1.2.0 | 2026-10-23 | 1.21.1 | Fabric |
| 1.2.0 | 2026-10-23 | 1.21.1 | NeoForge |
| 1.2.0 | 2026-10-23 | 1.20.1 | Fabric |
| 1.2.0 | 2026-10-23 | 1.20.1 | Forge |
| 1.1.0 | 2025-11-12 | 1.21.1 | Fabric |
| 1.1.0 | 2025-11-12 | 1.21.1 | NeoForge |
Dependencies
- Required: modrinth project P7dR8mSH (modrinth, not in our catalogue)
Declared by the newest build that lists any. Required ones are installed with it on one-click installs.
Run Zombie Apocalypse Core [ZAC] on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogCreatures & NPCs
Adds or changes creatures, NPCs and how they behave.
Runs on your server
From source side supportModrinth lists Zombie Apocalypse Core [ZAC] as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- FabricForgeNeoForge
- Runs on
- Serverrequired on the server
- Game versions
- 1.21.1 and 1 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-24Open ↗
- ✓Authorrd342, as published on Modrinth
- ✓LicenseGPL-3.0-onlyFree
