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A quick & dirty way to get Minecraft running via MultiMC on the Apple M1 with native performance

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m1-multimc-hack

Want to get Minecraft running natively on a Mac with an M1 "Apple Silicon" chip? Thanks to the excellent work by Tanmay Bakshi, it's possible!

This repo contains a wrapper script to be used with MultiMC that will configure any MultiMC instance to use the Apple Silicon native libraries from Tanmay's work. All you have to do is set the wrapper command and make sure you're using an M1-compatible JDK, and it should just work. This fork should automatically be compatible with all versions of Minecraft and is compatible with Forge based modpacks as long as you use Java 8 instead of 11.

Setup and Usage

Pre-requisites

First, install the Zulu Java 8 JRE for macOS ARM64.

Then download and install MultiMC.

Clone this repo

Open a terminal (it's in the Utilities folder inside of Applications, if you're new to command line stuff).

To make it easy to follow along, we'll make a new directory called Minecraft in our home folder. If you'd rather put this repo somewhere else, that's fine - the location doesn't really matter. If you do put it somewhere else, remember to change the references to it in the commands below.

The lines beginning with # below are comments and don't need to be entered, but it's fine to copy paste them in along with the rest.

# Make a place to put our wrapper script and libraries
mkdir -p ~/Minecraft

# enter the new directory
cd ~/Minecraft

# clone this repo
git clone https://github.com/17hoehbr/m1-multimc-hack.git

Configure MultiMC

Go to Settings, then navigate to the Java tab on the right. Then hit "Auto-detect".

Screenshot of MultiMC with "Settings" highlighted

Screenshot of instance Settings pane with "Auto-detect" button highlighted

It should open a window with a list of Java versions. Find the one that says "zulu-8" in the path and select it, then hit OK. (You may need to resize the window to see the full path.)

Screenshot of JVM list with correct JVM highlighted

Still in the Settings pane, switch to the "Custom Commands" tab. In the "Wrapper Command" box, enter the full path to the mcwrap.py script from this repo, e.g. /Users/your-username/stuff/m1-multimc-hack/mcwrap.py.

Screenshot of Custom Commands tab, with Wrapper Command box highlighted

An easy way to get the full path (assuming you put this repo in ~/Minecraft) is to open a terminal and enter:

ls ~/Minecraft/m1-multimc-hack/mcwrap.py | pbcopy

This will expand the ~ character to the full path to your home directory (e.g. /Users/yourname), and copy the whole thing onto your clipboard using the pbcopy command. Now you can paste it into the "Wrapper Command" box.

That's it! You should be able to launch the instance and run with native performance.

Support, etc

I did none of the work here except for stitching files from a few competing forks together.

The files lwjglfat.jar and all libraries in the lwjglnatives folder were compiled by Tanmay from the source available at https://www.lwjgl.org/source and are subject to its BSD-style license terms.

The mcwrap.py script was written by Yusef Napora, and is public domain. Please feel free to fork and improve, but expect PRs & issues, etc to be routed to the Sirius Cybernetics Corporation, Complaints Division. Share and Enjoy!

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