mod
Random OptimizationMinecraft mod for 1.21.1
This mod improves Minecraft's performance and fix serval bugs.
- Latest version
- randomoptimization-1.7.6-1.20.1.jar
- Minecraft
- 1.20.1 to 1.21.1
- Java
- Java 21+
- Loaders
- Forge, NeoForge
- Licence
- not stated
- Downloads
- 94.5k
- Updated
- 13 d ago
- Available on
- CurseForge
Minecraft versions
Every version Random Optimization declares support for, newest first, with the Java runtime that version needs.
Download
From Random Optimization’s own host. Nothing is re-hosted here.
For Minecraft 1.21.1
Choose the loader you use before downloading.
- Get NeoForge
NeoForge
randomoptimization-1.7.6-1.21.1.jar · 26 Oct 2026 · randomoptimization-1.7.6-1.21.1.jar
Most recently published release
randomoptimization-1.7.6-1.20.1.jar · 0.8 MB · for 1.20.1 · Forge
98345f5607cd…Older versions9Hide older versions
- randomoptimization-1.7.6-1.21.1.jar26 Oct 20261.21.10.1 MB
3a30da2687c3…Get - randomoptimization-1.7.5-all-1.21.1.jar24 Sept 20261.21.10.1 MB
e7423b68777e…Get - randomoptimization-1.7.5-all-1.20.1.jar24 Sept 20261.20.10.8 MB
d1a1c1f45314…Get - randomoptimization-1.7.4-all-1.20.1.jar17 Aug 20261.20.10.8 MB
594115d3af7e…Get - randomoptimization-1.7.4-all.jar17 Aug 20261.21.10.1 MB
fc6dc38bc2cb…Get - randomoptimization-1.7.3-all.jar7 Aug 20261.20.10.8 MB
174a1cdc5ab4…Get - randomoptimization-1.7.2-all.jar6 Aug 20261.20.10.8 MB
b627bf0a247c…Get - randomoptimization-1.7.1-all.jar6 Aug 20261.20.10.8 MB
a150beab402e…Get - randomoptimization-1.7.0-all.jar5 Aug 20261.21.10.1 MB
3cb2ac4351c5…Get
Frequently asked
Does Random Optimization work on Minecraft 1.21.1?
Yes. 1.21.1 is the newest Minecraft version Random Optimization declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does Random Optimization support?
Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.
Which platform or loader does Random Optimization support?
Forge, NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for Random Optimization?
Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.
How do I install Random Optimization?
Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.
Where do I download Random Optimization safely?
Start with the author's page on CurseForge, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .