A lightweight client-focused modpack designed to maximise performance while also providing a lot of fixes and quality of life features to the game.
Compatible with all vanilla servers and worlds.
Inspired by the likes of other optimised modpacks, it aims to replicate and improve upon features of Optifine, while also adding other mods that rats enjoy, like Figura :3
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- 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 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.
Verified by MCModsHub
- Downloads as Optimised for Rats-2.0.0.mrpack
- Download size: 102 KB
- Download link checked 3 Sept 2026 — working
These come from our own check of the pack file, not from the source page.