This guide details how to install EmuDeck and play Game Boy games on your Steam Deck, optimizing performance with Decky Loader and Power Tools. The Steam Deck, while powerful for modern games, excels as a retro gaming machine with the right setup.

Before You Begin:

Ensure you have:

• A fully charged Steam Deck.
• An A2 microSD card for games and emulators.
• Legally obtained Game Boy ROMs.
• A Bluetooth or wired keyboard and mouse (recommended for easier navigation).

Enable Developer Mode:

1. Press the Steam button.
2. Go to System > Developer Mode and enable it.
3. Enable CEF Debugging in the Developer menu.
4. Switch to Desktop Mode.

Install EmuDeck:

1. Connect your keyboard and mouse.
2. Download EmuDeck from its website using a browser (e.g., Firefox). Choose SteamOS and select "Download for Free."
3. Select "Recommended Settings" then "Custom Install."
4. Choose your SD card as the primary installation location.
5. Select desired emulators (RetroArch, Emulation Station, Steam ROM Manager recommended).
6. Enable "Auto Save."
7. Complete the installation.

Quick Settings (EmuDeck):

1. Open EmuDeck and go to Quick Settings.
2. Enable AutoSave, Controller Layout Match, Bezels, Nintendo Classic AR, and LCD Handhelds.

Adding Game Boy Games:

1. Use Dolphin File Manager to access your SD card (Primary > Emulation > ROMs > gb).
2. Transfer your .gb ROMs into the gb folder, ensuring correct filenames.

Steam ROM Manager Integration:

1. Open EmuDeck and select Steam ROM Manager.
2. Close the Steam client if prompted.
3. Disable "Toggle Parsers."
4. Add your Game Boy games.
5. Save to Steam.

Playing Game Boy Games:

1. Press the Steam button.
2. Go to Library > Collections.
3. Select your Game Boy collection and launch a game.

Customize Game Colors (RetroArch):

(Not all games support this)

1. Launch a game.
2. Open the RetroArch menu (Select + Y).
3. Go to Core Options > GB Colorization.
4. Choose "Auto" or "Off."

Using Emulation Station:

1. Press the Steam button.
2. Go to Library > Collections > Emulators > Emulation Station.
3. Select Game Boy and launch your game.

Install Decky Loader:

1. Switch to Desktop Mode.
2. Download Decky Loader from its GitHub page.
3. Run the installer and choose the recommended installation.
4. Restart your Steam Deck.

Install Power Tools Plugin:

1. Access Decky Loader's Quick Access Menu (QAM).
2. Go to the Decky Store and install the Power Tools plugin.

Power Tools Settings:

1. Launch a Game Boy game.
2. Open Power Tools via QAM.
3. Turn off SMTs. Set Threads to 4.
4. Go to the Performance menu (QAM), enable Advanced View.
5. Enable Manual GPU Clock Control and set GPU Clock Frequency to 1200.
6. Use Per Game Profile to save settings.

Restoring Decky Loader After a Steam Deck Update:

1. Switch to Desktop Mode.
2. Re-download Decky Loader from its GitHub page.
3. Run the installer (Execute only).
4. Enter your pseudo password (create one if needed).
5. Restart your Steam Deck.

Enjoy your enhanced Game Boy experience on your Steam Deck! Remember to always use legally obtained ROMs.