[TUTORIAL] Steam Deck: install EmuDeck and set up emulation step by step

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[TUTORIAL] Steam Deck: install EmuDeck and set up emulation step by step

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Automatically translated from French.

[TUTO] Steam Deck : installer EmuDeck et configurer l’émulation pas à pas

EmuDeck installs and configures emulators on the Steam Deck in one go: here is the step-by-step installation, the folders where your games and BIOS go, and the mistakes to avoid.


What EmuDeck is

A free installer that downloads the emulators (RetroArch, PCSX2, Dolphin, PPSSPP, DuckStation, RPCS3, Cemu, xemu…), configures them for the Steam Deck's controls, and puts your games in the Steam library or in a dedicated interface. It also works on Windows, on PC handhelds such as the ROG Ally, and on the Steam Machine.

Current version: EmuDeck 2.7.1, released 29 September 2026. What's new is covered in our news article.


1. Prepare the microSD card (recommended)

Games quickly take up space: install them on the SD card. It must be formatted as ext4, which the Steam Deck does itself: Settings > Storage, select the card, then Format. Avoid spaces in the card's name: it is the number one cause of the “path not writable” error.


2. Install EmuDeck
  1. Switch to Desktop Mode: button Steam > Power > Switch to Desktop.
  2. Open the browser and download the installer from the official website, emudeck.com. Nowhere else.
  3. Run it: the EmuDeck app opens.
  4. Choose Easy Mode (Easy Mode) if you are a beginner: you only have to choose where your games go (SD card or internal storage) and the integration mode. Custom Mode lets you pick each emulator, the bezels, the shaders and the controls.
  5. Let the installation finish. If it gets stuck, it is almost always a network problem: the manual recommends setting your DNS to 1.1.1.1.

3. Organize your games and BIOS

EmuDeck creates an Emulation folder at the location you chose:
  • Emulation/roms/, with one subfolder per console: nes, snes, n64, psx, ps2, gc, wii, psp… Each one contains a systeminfo.txt file listing the accepted formats.
  • Emulation/bios/: the PS1, PS2 and DS BIOS files go directly in here, with no subfolder. The Dreamcast ones go in Emulation/bios/dc. The PS3 firmware is installed from within RPCS3 itself.
The app includes a BIOS checker: run it after copying, and it tells you what is missing. Avoid apostrophes, accented letters and the “+” sign in file names.


4. Make your games show up

Two ways, chosen during installation:
  • ES-DE (EmulationStation Desktop Edition): a single entry in Steam that opens an interface per console, with box art and videos. The best choice for a large library.
  • Steam ROM Manager: each game becomes an entry in your Steam library, sorted into a collection per console. Ideal for a small selection.
With Steam ROM Manager: in Desktop Mode, open EmuDeck, then Steam ROM Manager in the left-hand menu. Enable the systems you want, click Add Games, then Parse, wait for the artwork to finish downloading, and finish with Add to Steam. Repeat this every time you add games.


5. Useful settings
  • The hotkeys (quit a game, save state, fast forward) are listed for each emulator in the app: take a minute to read them before playing.
  • Never force Proton on an emulated game added by Steam ROM Manager: the emulators are native Linux applications.
  • Updating: EmuDeck updates itself when it opens; the emulators are updated from the Manage Emulators.
  • The RetroAchievements, cloud saves and bezels are also set up from the app.

6. What about the Switch?

EmuDeck does not provide the Yuzu and Citron Switch emulators: it only helps you configure the one you bring yourself. This is the result of Nintendo's actions against these projects, and we do not link to them either. For the GameCube, Wii, PS2 or PSP, however, the Steam Deck is excellent.


7. The most common errors
  • “Path not writable”. A space in the SD card's name: rename it (KDE Partition Manager in Desktop Mode).
  • A game does not show up. Wrong folder, wrong format (check systeminfo.txt), or an extra subfolder. Then run Steam ROM Manager again.
  • “BIOS not found” in PCSX2 or DuckStation. The BIOS is in a subfolder, or it is not a real BIOS file. Run the checker again.
  • The controls do not respond in Desktop Mode. Hold Start for three seconds to enable the controller configuration.

⚠ Warning: games and BIOS must come from your own consoles. The ready-made “packs” sold with SD cards are illegal, and often so badly named that they break the integration.


Sources and official guides: EmuDeck · Official manual · Releases (GitHub) · ES-DE

Tgames does not provide games, BIOS or keys: only use backups of your own games and your own console. Have a question? Reply to this topic.

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