How do I install Minecraft Optimus?

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. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does Minecraft Optimus work with?

The listing gives Minecraft 1.21.4. This is the version stated by the author or source site, not something we verified ourselves.

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Minecraft Optimus

Java modpack listed for Minecraft 1.21. File opened and checked on 15 Oct 2026; downloads from the MC Java Mods app on Android.

by AlopeRuby · on Modrinth

⬇ Download on Modrinth

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A modpack that purely optimizes Minecraft Java to run the best it can be, for versions 1.20.1 and up, with little to no visual or gameplay changes!

The goal here is to improve how Minecraft runs as much as possible, while making near-zero changes to gameplay or visuals.

All contributions and suggestions are welcome. Join the Discord server link!

UPDATES:

Now updated to 1.0.7:
- Java 1.20.1 for Forge, NeoForge and Fabric
- Java 1.21.4 for NeoForge, Fabric and Quilt!
Better Beds Reforged has been removed in all versions that contain EnlightenedBlockEntities or EnhancedBlockEntities as it conflicts with those mods, causing beds to render incorrectly.
VanillaIcecreamFix has been updated and is now compatible with Applied Energistics 2, and you are now free to add AE2 to any instance of Minecraft Optimus of version 1.0.3 or later.

Coming soon:

versions for Java 1.21.6 will be released as soon as the mods involved are updated. This will then supercede the Java 1.21.4 versions.

Known incompatibilites:

Palladium causes Create-mod connected textures to malfunction. Disable Palladium if using this modpack with any Create mods.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.21.4
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 Modrinth — 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.

File checked by MCModsHub

Downloads as Minecraft Optimus - 1.21.4 Quilt 1.0.7.mrpack
Download size: 53 KB
Download link checked 30 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

All Modpacks for Java All Minecraft Java mods Java mods for 1.21