EntityOptimization
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
Why install this mod?
EntityOptimization prevents world crashes caused by excessive mob counts.
It helps maintain stable TPS by slowing down mob ticks.
How does it work?
The mod monitors mob populations. When too many mobs of a type appear, it slows their ticks. If the number becomes critical, it starts removing them until the count normalizes.
Where should you use it?
In singleplayer — to protect your world from broken mob farms.
On servers — to keep TPS stable and prevent entity-based exploits.
Can you control mob limits?
Yes. The config allows you to disable mob removal and customize mob limits.
Mod showcase:
https://youtu.be/18AzqR19x8Q
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20.1, 1.21.1
- 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.
- Ships as EntityOptimization-1.21.1-1.0.0.jar — drop this file into the mods folder
- Download size: 11 KB
- Download link checked 28 Sept 2026 — working
These come from our own check of the pack file, not from the source page.