: Place your .gdi or .chd files in Emulation/roms/dreamcast .

To run Sega Dreamcast, Naomi, and Atomiswave games on your Steam Deck, is the premier choice for performance and compatibility. While you can download it as a standalone app, most users prefer installing it via EmuDeck or as a RetroArch core for easier configuration. Method 1: EmuDeck (The Recommended Way)

: Visit emudeck.com in your browser and download the installer to your desktop.

: Hold the power button and select "Switch to Desktop".

EmuDeck is a script that automates the installation and configuration of Flycast alongside other emulators.

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