How To Play Metal Gear Solid 4 on Steam Deck: Complete RPCS3 Setup & Settings Guide

In this guide, I’ll share how to install and set up Metal Gear Solid 4: Guns of the Patriots on the Steam Deck using RPCS3 and Lossless Scaling with a full walkthrough of performance and settings.

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✅ Official RPCS3 Download – https://rpcs3.net/download
✅ Official PS3 Firmware Download – https://www.playstation.com/en-us/support/hardware/ps3/system-software/
✅ Backup PS3 Games – https://www.youtube.com/watch?v=YkHL3KwF_4E
✅ Install Lossless Scaling Guide – https://www.youtube.com/watch?v=dF-zJWzg6WU
✅ MGS4 Wiki Canary Patch – https://wiki.rpcs3.net/index.php?title=Metal_Gear_Solid_4%3A_Guns_of_the_Patriots

🎬Steam Deck – https://www.youtube.com/watch?v=I5lRn-spGcM
🎬ROG ALLY – https://www.youtube.com/watch?v=2qh2vAgA3os
🎬ROG ALY X – https://www.youtube.com/watch?v=_TogkCKlHfc
🎬Legion GO – https://www.youtube.com/watch?v=6R9itIQnAOw
🎬Legion GO S – https://www.youtube.com/watch?v=PxGxqhIBAT0&t=481s
🎬MSI Claw 8 – https://www.youtube.com/watch?v=Nim3zs9YA-Q

00:00 – Introduction
01:52 – Prepare Desktop Folders
02:27 – Download Official RPCS3
02:49 – Download Official PS3 Firmware
03:18 – Organize Files
03:42 – Run RPCS3 App Image
04:29 – Install PS3 Firmware
04:56 – Install Canary Patch
07:40 – RPCS3 MGS4 Settings
09:18 – Setup Controller Pad
09:44 – Compile PPU Modules
10:17 – Add RPCS3 App Image To Steam
10:34 – Gaming Mode RPCS3
11:19 – In Game First Time
12:06 – In Game Demonstration
13:24 – Lossless Scaling RPCS3 Steam Deck Setup
15:00 – In Game Lossless Scaling Demonstration
15:50 – Final Thoughts and Notes
16:51 – Acknowledgments
17:27 – Thanks For Watching

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Steam Deck OLED
SteamOS 3.7.13
4GB VRAM

Under section 107 of the Copyright Act 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, education, and research.
No Games Are Included Or Added

This video contains footage used under fair use for commentary and educational purposes.

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