Steam Deck: How To Run Sega CD Games

This guide details how to play Sega CD games on your Steam Deck using EmuDeck. We'll cover setup, ROM transfer, and troubleshooting.

Pre-Installation Steps:

Enable Developer Mode and CEF Remote Debugging on your Steam Deck for compatibility with EmuDeck updates. Instructions:

1. Access Steam Menu (Steam button).
2. Go to System > Developer Mode and enable it.
3. In the Developer menu, enable CEF Remote Debugging.
4. Power menu > Desktop Mode.

Essential Items:

• High-speed A2 microSD card (for EmuDeck and games).
• Format the microSD card on the Steam Deck (Steam Menu > Storage > Format SD Card).
• Legally obtained Sega CD ROMs and BIOS files.
• Optional: Keyboard and mouse for easier file management.

Installing EmuDeck:

1. Switch to Desktop Mode.
2. Download a browser (from the Discovery Store), and download EmuDeck. Choose the SteamOS version.
3. Run the installer, select Custom installation, choose your SD card, select the Steam Deck, and select RetroArch, MelonDS, Steam ROM Manager, and Emulation Station (or all emulators).
4. Complete the installation.

Transferring Sega CD Files:

1. Open Dolphin File Browser (Desktop Mode).
2. Navigate to your SD card (Primary).
3. Go to Emulation > BIOS and transfer your BIOS files.
4. Go to Emulation > ROMS > segaCD (or megaCD) and transfer your ROMs.

Adding ROMs with Steam ROM Manager:

1. Open EmuDeck and launch Steam ROM Manager.
2. Click Next, skip the Nintendo DS steps, click Add Games, then Parse. SRM will prepare your games and covers.

Fixing Missing Covers:

If covers are missing:

1. Click Fix. Search for the game title.
2. Select a cover, click Save and Close.

To manually add covers:

1. Click Upload, select your image, Save and Close.

Playing Sega CD Games:

1. Go to Steam Library > Collections > Sega CD.
2. Launch your games.

Using Emulation Station:

Emulation Station (installed earlier) offers better organization, especially for multi-disc games. Access it via Steam Library > Non-Steam. Use the Scraper function for metadata and cover art.

Installing Decky Loader and Power Tools:

Decky Loader is recommended for Power Tools.

1. Switch to Desktop Mode.
2. Download Decky Loader from its GitHub page.
3. Run the installer (Recommended Install). Restart in Gaming Mode.
4. Open Decky Loader (QAM button), go to the store, and install Power Tools.
5. Configure Power Tools (disable SMTs, set Threads to 4, adjust GPU clock in Performance menu).

Fixing Decky Loader After a Steam Deck Update:

If Decky Loader is lost after an update:

1. Switch to Desktop Mode.
2. Re-download Decky Loader from GitHub.
3. Select "Execute" (not "Open").
4. Enter your sudo password (create one if needed).
5. Restart your Steam Deck.

This completes the setup. Enjoy your Sega CD games!