Mobs Properties Randomness
Randomize mobs properties. Add Potion Effects, Equipment, on hit effects and more!
About this Mod
Summary
Mobs Properties Randomness lets you add/change many properties to mobs on spawn, and, with events, when other stuff happens, such as on attack, on tick or on death with data packs.
This mod requires InsaneLib
As of 5.0.0 and up the mod (and its dependencies) now work server side only, so with MPR server you can connect with a vanilla client.
The mod
The mod does nothing on its own, you have to make a data pack: click here to get started (please note this is for latest version, click here for a list of versions)
You can also find a video tutorial playlist below.
Some stuff you can do:
- Potion Effects
- Attribute Modifiers
- Equipment
- Effect immunity
- NBT
- Events (attack, kill, target change)
- Presets (for creating stuff like bosses)
Links
Getting Started
Credits
Thanks for part of the logo to Smabblis
Available Versions
How to Install Mobs Properties Randomness on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Mobs Properties Randomness". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.20.1, 1.19.4 (+2 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Mobs Properties Randomness server crashes on startup – what to do?
Most common cause: wrong forge 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 (1.21.1). You can switch loaders with one click in the panel.
Is Mobs Properties Randomness compatible with forge and neoforge?
Mobs Properties Randomness officially supports forge, neoforge for Minecraft 1.21.1, 1.20.1, 1.19.4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Mobs Properties Randomness – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Mobs Properties Randomness 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 Mobs Properties Randomness with just one click on your server.