This guide details how to play Sega CD games on your Steam Deck using EmuDeck. It's a comprehensive walkthrough, covering everything from initial setup to troubleshooting.
Pre-Installation Steps:
Enable Developer Mode and CEF Remote Debugging on your Steam Deck for compatibility with EmuDeck updates. This involves accessing the Steam menu, navigating to System > Developer, enabling both options, and restarting in Desktop Mode.
You'll need:
- A high-speed A2 microSD card (for EmuDeck and games). Format this card on the Steam Deck after insertion.
- Legally obtained Sega CD ROMs and BIOS files.
- (Optional but recommended) A keyboard and mouse for easier navigation.
Installing EmuDeck:
Switch to Desktop Mode. Download a browser (from the Discovery Store), then download EmuDeck, choosing the SteamOS version. During installation, select "Custom" and choose your SD card as the installation location. Select RetroArch, MelonDS, Steam ROM Manager, and Emulation Station (or install all emulators). Complete the installation.
Transferring Sega CD Files:
Using your file browser (in Desktop Mode), navigate to your SD card (Primary > Emulation > BIOS) and transfer your BIOS files. Then, transfer your Sega CD ROMs to (Primary > Emulation > ROMS > segaCD or megaCD).
Adding ROMs with Steam ROM Manager:
Launch EmuDeck, then Steam ROM Manager. Follow the on-screen prompts, selecting "Add Games" and "Parse" to add your Sega CD ROMs to your Steam Library.
Fixing Missing Covers:
If covers are missing, use the "Fix" function in Steam ROM Manager, searching for the game title and selecting a suitable cover. Manually upload covers if needed.
Playing Your Games:
Access your Sega CD games through Steam's Library > Collections > Sega CD. Alternatively, use Emulation Station (Library > Non-Steam) for a different library view and multi-disc game support. Use Emulation Station's scraper to automatically download metadata and cover art.
Installing Decky Loader and Power Tools:
Install Decky Loader from its GitHub page. Then, use Decky Loader to install Power Tools. Optimize Power Tools settings (disable SMTs, set threads to 4, adjust GPU clock) for improved performance.
Restoring Decky Loader After a Steam Deck Update:
If Decky Loader is removed after a Steam Deck update, reinstall it from GitHub using the "Execute" option (requires sudo password).
This comprehensive guide ensures a smooth setup and enjoyable Sega CD gaming experience on your Steam Deck.
