How do I install The Unofficial Rats Modpack?

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 The Unofficial Rats Modpack work with?

The listing gives Minecraft 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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The Unofficial Rats Modpack

Java modpack listed for Minecraft 1.20. File opened and checked on 17 Oct 2026; downloads from the MC Java Mods app on Android.

by nintendoisgood · on Modrinth

⬇ Download on Modrinth

Open in MC Java Mods Get it on Google Play →

Have you wanted to play Rats, but don't know how? Do you like NeoForge, but hate managing mods? With The Unofficial Rats Modpack, you can play this excellent (and somewhat unsettling) mod smoothly and easily!

This modpack is based off of the brilliant modpack Hammer. If you like (Neo)Forge, but want an optimised experience, check it out!

Also includes JEI.

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.

File checked by MCModsHub

Downloads as The Unofficial Rats Modpack.mrpack
Download size: 3.6 MB
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 1.20