"Steam Deck: Running Sega Master System Games"

Quick Links

• Before Installing EmuDeck

  • Activate Developer Mode

• Installing EmuDeck In Desktop Mode

• Adding Master System Games To The Steam Library

• Fix Or Upload Missing Artwork

  • Upload Missing Artwork

• Playing Master System Games On The Steam Deck

  • Improve Performance

• Install Decky Loader For The Steam Deck

• Install Power Tools

  • Power Tools Settings For Emulated Games

• Fixing Decky Loader After A Steam Deck Update

The Sega Master System, an iconic 8-bit console that rivaled the NES, brought gamers a plethora of unforgettable titles. From exceptional ports like Golden Axe, Double Dragon, and Streets of Rage to ambitious games like Mortal Kombat and Asterix & Obelix, which pushed the console's limits to near 16-bit performance, the Master System holds a special place in retro gaming history.

For enthusiasts eager to relive these classics on modern hardware, the Steam Deck, paired with the powerful EmuDeck software, offers a seamless solution. Here's a comprehensive guide on how to set up and enjoy Sega Master System games on your Steam Deck.

Updated January 15, 2024, by Michael Llewellyn: While the Steam Deck's power is more than sufficient for 8-bit games, achieving optimal performance can be challenging. This is where Decky Loader and the Power Tools plugin come into play. EmuDeck developers recommend installing these tools to enhance your retro gaming experience. This guide has been updated to include detailed installation steps and solutions for restoring functionality after Steam Deck updates.

Before Installing EmuDeck

Before diving into the world of Sega Master System games on your Steam Deck, ensure you have the right tools and settings in place for a smooth installation:

• Keep your Steam Deck plugged into a power source or fully charged.
• Use a high-speed micro SD card, formatted on the Steam Deck, to expand your storage.
• Alternatively, an external HDD can be used, though it will compromise the device's portability.
• A keyboard and mouse can simplify file transfers and installations, mimicking a home computer setup.
• If you don't have these peripherals, access the built-in keyboard by pressing the Steam and X buttons simultaneously and use the trackpads as a mouse substitute.

Activate Developer Mode

To ensure your emulators run smoothly, you'll need to activate Developer Mode on your Steam Deck:

• Press the Steam button to access the left panel.
• Navigate to the System menu and find System Settings.
• Enable Developer Mode.

- The Developer menu is at the bottom of the left panel.

• Open the Developer menu.
• Under Miscellaneous, enable CEF Remote Debugging.
• Press the Steam Button, select Power, and restart your Steam Deck.

Note that CEF Remote Debugging may be disabled after updates, which can affect plugins and emulators. Always check the Developer Menu post-update to ensure it's enabled.

Installing EmuDeck In Desktop Mode

- To switch to Desktop Mode, press the Steam button, select Power, and choose Desktop Mode.

• Use a browser like Chrome or Firefox to download EmuDeck.
• Select the appropriate SteamOS version and download the installer. Double-click to launch it and follow the recommended install.
• Opt for a Custom Install.
• After installation, open the menu and select the SD card image labeled Primary to rename it for easy access in the Dolphin file manager.
• Choose to install all emulators or focus solely on the Sega Master System with Retroarch.

RetroArch is a versatile emulator that supports multiple classic systems through a single interface, accessible via the 'Emulators' tab in your Steam library.

• Ensure the Steam Rom Manager is selected alongside Retroarch to integrate games into your main Steam library.
• Enable the 'Configure CRT Shader for Classic 3D Games' feature for an authentic retro look.
• Click Finish to complete the installation.

Transferring Master System Roms

With Retroarch and EmuDeck set up, it's time to add your Sega Master System ROMs:

• Launch the Dolphin File Manager.

- Navigate to Removable Devices on the left panel and open the SD card labeled Primary.

• Access the Emulation folder, then ROMS.
• Find the 'mastersystem' folder.
• Transfer or copy your Sega Master System ROM files, which typically end in '.sms,' such as 'Pro Wrestling.sms.' Ignore the 'media' file.

Adding Master System Games To The Steam Library

To enjoy your Sega Master System games in Gaming Mode, add them to your Steam Library:

• Open EmuDeck in Desktop Mode.
• Access the Steam Rom Manager.
• Click Next on the Welcome to SRM! page.
• Disable Parsers.
• Select Sega Master System on the Parsers screen.
• Click Add Games, then Parse.
• Verify that games and cover art are displayed correctly, then select Save to Steam.

Fix Or Upload Missing Artwork

Given the age of the Sega Master System, you might encounter missing or incorrect artwork. Here's how to fix it:

• Click Fix on the cover frame.
• The Steam ROM Manager should automatically display cover art. If it's missing, enter the game's title in the Search for game field.
• Browse the list, select the best cover, and choose Save and close.

Upload Missing Artwork

If the Steam Rom Manager can't find the right artwork, follow these steps:

• Use a browser to find the correct artwork and save it to the Steam Deck's Pictures folder.
• Click Upload on the cover frame.
• Select the new artwork from the Pictures folder, then save and close.
• If the image doesn't appear, use the left and right arrows to locate it.
• Click Save to Steam.
• Once the batch files are processed, switch back to Gaming Mode.

Playing Master System Games On The Steam Deck

With your games and artwork added to the Steam library, you can now play them like any other game:

• In Gaming Mode, press the Steam button.
• Select Library from the side menu.
• Use the R1 button to navigate to the Collections tabs.
• Click on the Sega Master System window.
• Choose your game and start playing.

Improve Performance

To enhance the performance of your classic games on the Steam Deck:

• Launch your Sega Master System game and press the QAM button under the right trackpad.
• Open the Performance menu.
• Enable 'Use game profile.'
• Set the Frame Limit to 60 FPS.
• Turn on Half Rate Shading.

Install Decky Loader For The Steam Deck

EmuDeck developers recommend installing Decky Loader and the Power Tools plugin for optimal performance with emulated games. Here's how to set them up:

• Connect a keyboard and mouse for easier navigation, or use the trackpads and on-screen keyboard (Steam + X).
• Switch to Desktop Mode from Gaming Mode via the Steam button, then Power.
• Open a web browser (downloadable from the Discovery Store if needed).
• Navigate to the GitHub Decky Loader page and click the Download icon.
• After downloading, double-click the launcher and select Recommended Install.
• Restart your Steam Deck in Gaming Mode.

Install Power Tools

With Decky Loader installed, add the Power Tools plugin:

• In Gaming Mode, press the QAM button.
• Select the new plugin icon at the bottom of the QAM.
• Click the store icon at the top of the Decky Loader menu.
• Find and install the Power Tools plugin in the Decky Store.

Power Tools Settings For Emulated Games

To optimize your Sega Master System games:

• From your Library, launch a Master System game.
• Press the QAM button, then select Decky Loader and the Power Tools menu.
• Disable SMTs.
• Set the number of Threads to 4.
• Open the Performance menu via the QAM button and the battery icon.
• Enable Advanced View.
• Turn on Manual GPU Clock Control.
• Set the GPU Clock Frequency to 1200.
• Save these settings as a Per Game Profile.

Fixing Decky Loader After A Steam Deck Update

Steam Deck updates can sometimes disrupt third-party apps like Decky Loader. Here's how to restore it:

• Switch to Desktop Mode from Gaming Mode.
• Open a browser and visit the Decky Loader GitHub page.
• Click the Download icon and select Execute.
• Enter your pseudo password when prompted. If you haven't set one up, follow the on-screen instructions to create one.
• After installation, power off and restart your Steam Deck in Gaming Mode.
• Press the QAM button to access Decky Loader and your plugins again.

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