
Undead Armies
A mod focused on adding cooperation between entities to accomplish a specific target, inspired by strategies in real world armies.
Screenshots




About this Mod
THIS MOD IS BEING REWRITTEN
- This mod is currently being rewritten, it's recommended to wait for the rewrite to be finished.
- The rewrite should be done before
februarymarchmayjune 2026. - As for the progress, Stacking & Mining is done, currently working on ramming (will be renamed to ram & trample).
Have you ever felt the undead mobs in minecraft were lacking intelligence? This mod fixes that!
this mod enables undead mobs to work together to destroy a player or any other entity [such as iron golems]. Undead mobs can also do other things that help them destroy their targets.
Features list
Stacking
Undead mobs will climb on top of eachother to go through obstacles
Mining
Undead mobs will mine their way in to their target
Sprinting
Undead mobs will sprint to their target if their target is near.
Grab
Undead mobs will grab their target if able to, inflicting slowness on their target and themselves.
Jumping
Undead mobs can jump 2 block gaps
Multi targeting
Groups of Undead mobs are now able to split into smaller groups to attack multiple targets at once
Ramming
A Group of Undead mobs can violently leap and crash into a block causing it to break if enough damage was done.
Compatibility
- Practically compatible with any mod. [this mod only adds on existing minecraft code]
Note
- This mod does not store any extra data! Therefore, if a mob was breaking a block and the server restarts, the progress of breaking that block will be reset!
Find this mod on Curseforge
- Click this
Available Versions
How to Install Undead Armies on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.5).
Install Mod
Open the mod browser in the dashboard and search for "Undead Armies". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.5, 1.21.4, 1.21.3 (+3 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Undead Armies server crashes on startup – what to do?
Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.5). You can switch loaders with one click in the panel.
Is Undead Armies compatible with neoforge?
Undead Armies officially supports neoforge for Minecraft 1.21.5, 1.21.4, 1.21.3. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Undead Armies – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Undead Armies consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install Undead Armies with just one click on your server.