mcc_downpatch_steamdeck.md

DO NOT USE THIS YET I HAVEN'T FULLY GOTTEN IT WORKING, USING THIS TO RECORD NOTES!!

How to downpatch Halo MCC on Steam Deck:

Downloading Depot Files

1. Switch to Desktop Mode
2. Open Konsole (command line terminal)
3. Open Steam Console: steam steam://open/console
4. In Steam Console, follow the usual instructions to download the downpatch files: https://discord.com/channels/83061848139632640/83063005918531584/1054961844395200552
5. In either Konsole or Dolphin, move the base depot folder somewhere accessible (i.e. ~/Desktop/MCC_Two_EEzy)
6. Finish consolidating by moving the individual game depot(s) to the folder above
7. Add the steam_appid.txt file as outlined in the downpatch instructions

Install Protontricks

Protontricks is an application that makes it a bit easier to run games using Proton (compatibility layer built by Steam for Windows games)

1. Open Discover (app store)
2. Search for Protontricks
3. Install

Note: If you previously installed protontricks, you may need to remove the installation and app/user data via Discover then re-install, otherwise you may run into permissions issues related to bwrap.

Setup terminal commands

1. Open Konsole
2. Run the following:

echo "alias protontricks='flatpak run com.github.Matoking.protontricks'" >> ~/.bashrc
echo "alias protontricks-launch='flatpak run --command=protontricks-launch com.github.Matoking.protontricks'" >> ~/.bashrc

3. Reload bash:

source ~/.bashrc

Run MCC

1. Open Konsole
2. Run the following (update path to your downpatch file location):

protontricks-launch --appid 976730 ~/Desktop/MCC_Two_EEzy/mcc/binaries/win64/MCC-Win64-Shipping.exe