"How to Play Sega Master System Games on Steam Deck"

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 8-bit competitor to the NES, delighted gamers with its exclusive titles and unique game versions. Standout games like Golden Axe, Double Dragon, and Streets of Rage were exceptionally well-received on the platform. Remarkably, the console managed to deliver impressive performances with titles like Mortal Kombat and Asterix & Obelix, rivaling the capabilities of 16-bit systems such as the Megadrive/Genesis.

For retro gaming enthusiasts eager to relive these classics on modern hardware, the Steam Deck, combined with the powerful EmuDeck software, provides an ideal solution. Here's a comprehensive guide on how to install emulators for Sega Master System games on the Steam Deck.

Updated January 15, 2024, by Michael Llewellyn: With the Steam Deck's robust capabilities, running Sega Master System games should be seamless. However, achieving the optimal performance of these 8-bit classics can be challenging. This is where Decky Loader and the Power Tools plugin become essential. The EmuDeck developers strongly recommend installing these tools to enhance your retro gaming experience. This guide has been updated to include detailed installation steps and solutions for maintaining functionality post-Steam Deck updates.

Before Installing EmuDeck

Before you dive into installing EmuDeck on your Steam Deck for Sega Master System games, ensure you have the right tools and settings in place for a smooth experience:

• Keep your Steam Deck plugged into a power source or ensure it's fully charged.
• Use a high-speed micro SD card inserted into the bottom of the Steam Deck and format it on the device.
• Alternatively, you can opt for an external HDD, though this will compromise the device's portability.
• A keyboard and mouse can simplify file transfers and installations, much like using a home computer.
• If you don't have a keyboard and mouse, you can access the built-in keyboard by pressing the Steam and X buttons simultaneously and use the trackpads as a mouse.

Activate Developer Mode

To ensure smooth gameplay with your emulators, activating Developer Mode on your Steam Deck is essential:

• Open the left access panel by pressing the Steam button.
• Navigate to the System menu and select System Settings.
• Enable Developer Mode by toggling it on.

- Find the Developer menu at the bottom of the access panel.

• Open the Developer menu.
• Under Miscellaneous, activate CEF Remote Debugging.
• Press the Steam Button.
• Select Power and restart the Steam Deck.

Remember, CEF Remote Debugging may be disabled after an update, which can affect plugins and emulators. Always verify its status in the Developer Menu after an update.

Installing EmuDeck In Desktop Mode

- Access the side menu by pressing the Steam button below the left trackpad, then select Power and switch to Desktop Mode.

• Open a browser like Chrome or Firefox to download EmuDeck.
• Choose the appropriate SteamOS version and start the download. Once downloaded, double-click the installer and agree to the recommended installation to begin.
• Opt for a Custom Install.
• After installing EmuDeck, open the menu and select the SD card image labeled Primary. This renames your SD card to Primary, making it easier to locate under Removable Devices in the Dolphin file manager.
• You can install all emulators or focus specifically on the Sega Master System by selecting Retroarch.

RetroArch is versatile, running various emulators for classic gaming systems within one application. Access these under the 'Emulators' tab in your Steam library.

• Ensure the Steam Rom Manager is selected along with Retroarch to display the games in the main Steam library.
• Navigate through the options and enable the 'Configure CRT Shader for Classic 3D Games' feature for an authentic retro TV look.
• Select Finish to complete the installation.

Transferring Master System ROMs

With Retroarch and EmuDeck installed, it's time to transfer your Sega Master System ROMs to their designated folders:

• Open the Dolphin File Manager.

- In the left panel, scroll down to Removable Devices and open the SD card labeled Primary.

• Navigate to the Emulation folder and click on ROMS.
• Locate the 'mastersystem' folder within the list.
• Transfer or copy the Sega Master System files. These typically have the extension '.sms,' such as 'Pro Wrestling.sms.' Ignore the 'media' file.

Adding Master System Games To The Steam Library

While you can play Sega Master System games from Retroarch in Desktop Mode, integrating them into your Steam Library allows for seamless gameplay in Gaming Mode:

• Launch EmuDeck in Desktop Mode.
• Click or tap on the Steam Rom Manager.
• Click Next on the Welcome to SRM! page.
• Disable Parsers.
• Highlight Sega Master System on the Parsers screen.
• Select Add Games, then choose Parse.
• Ensure the games and cover arts are displayed correctly and select Save to Steam.

Fix Or Upload Missing Artwork

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

• Click Fix on the cover frame.
• The Steam ROM Manager usually displays cover art automatically. If it's missing, enter the game's title into the Search for game field.
• Browse through the game covers, select the best one, and choose Save and close.

Upload Missing Artwork

If the Steam Rom Manager can't find the correct artwork, follow these steps to upload it manually:

• 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 isn't displaying, click the left and right arrows to find it.
• Then, click on Save to Steam.
• Once the batch files are processed, return to Gaming Mode on your Steam Deck.

Playing Master System Games On The Steam Deck

After the Steam Rom Manager uploads the covers and game artwork to your Steam library, you can access your emulated games just like the official ones:

• In Gaming Mode, press the Steam button below the left trackpad.
• Select Library from the side menu.
• Press the R1 button to highlight the new Collections tabs.
• Click or tap on the Sega Master System window.
• Select the Sega game and start playing.

Improve Performance

Some classic games may experience stuttering or frame rate issues on the Steam Deck. Here's how to enhance performance:

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

Install Decky Loader For The Steam Deck

EmuDeck developers recommend installing Decky Loader along with the Power Tools plugin for optimal performance and control over your Steam Deck when playing emulated games. Follow these steps for installation:

• Connect a keyboard and mouse for easier navigation through menus and downloads. (Alternatively, use the trackpads and on-screen keyboard by pressing Steam and X.)
• If in Gaming Mode, press the Steam button, then Power, and switch to Desktop Mode.
• Open a web browser. You can download browsers from the Discovery Store.
• Navigate to the GitHub Decky Loader page.
• Click the large Download icon to start the download.
• Once downloaded, double-click the launcher and select the Recommended Install option.
• After installation, restart your Steam Deck in Gaming Mode.

Install Power Tools

With Decky installed, you can now add the Power Tools plugin by following these steps:

• In Gaming Mode, press the Quick Access Menu (QAM) button beneath the right trackpad.
• In the QAM, select the new plugin icon at the bottom.
• Click the store icon at the top of the Decky Loader menu.
• In the Decky Store, find and install the Power Tools plugin.

Power Tools Settings For Emulated Games

• Press the Steam button and open your Library to launch a Master System game from your Collections menu.
• Press the QAM button, navigate to Decky Loader, and select the Power Tools menu.
• Disable SMTs.
• Set the number of Threads to 4.
• Press the QAM button again, then open the Performance menu by selecting the small battery icon.
• Enable Advance View.
• Turn on Manual GPU Clock Control.
• Increase the GPU Clock Frequency to 1200.
• Select the Per Game Profile option to save these settings for each game.

Fixing Decky Loader After A Steam Deck Update

Major Steam Deck updates can alter menus and settings, potentially removing third-party apps from your Quick Access menu. Here’s how to restore Decky Loader and its plugins:

• If still in Gaming Mode, press the Steam button to access the Power menu and switch to Desktop Mode.
• Once in Desktop Mode, open a browser.
• Visit the Decky Loader GitHub page and click the Download icon.
• This time, select Execute instead of Recommended Install.
• Enter your pseudo password when prompted.
• If you haven't set up a pseudo password yet, follow the on-screen instructions to create one. Choose a memorable password and keep a record for future use.
• After installation, power off the Steam Deck and restart it in Gaming Mode.
• Press the QAM button, and Decky Loader, along with your settings and plugins, should be restored to their previous state.

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