How to emulate on Steam Deck
The Steam Deck is one of the best emulation machines you can buy, mostly because a free tool called EmuDeck does the hard setup for you. Instead of installing a dozen emulators by hand and configuring each one, you run a single installer and end up with a working retro library that shows up right in your game list. This guide covers what EmuDeck does, the legal line you need to respect, and whether installing Windows is worth the hassle. If you are still learning the device, our Steam Deck tips guide covers the basics first.
What EmuDeck actually is
EmuDeck is not an emulator itself. It is an installer and configuration tool that sets up a whole suite of emulators and wires them together so they behave like one system.
When you run it, EmuDeck does several things at once:
- Installs the emulators. It pulls in the widely used emulators for classic Nintendo, Sony, Sega, and other systems, so you do not chase down each one.
- Applies sensible settings. It preconfigures controls, save locations, and graphics defaults tuned for the Deck's hardware, which is the part that usually eats hours by hand.
- Sets up folders for your files. It creates a clear folder structure where you drop your game files, sorted by console.
- Adds Steam ROM Manager. This tool imports your games into your Steam library with artwork, so you launch them from Gaming mode like any other title.
The result is that emulation feels native. You press the Steam button, scroll to a game, and it launches, no Desktop mode fiddling required after the initial setup.
How to set it up, in short
The full process lives in EmuDeck's own guide, but the shape of it is simple.
- Switch the Deck to Desktop mode (hold the power button, choose Switch to Desktop).
- Download EmuDeck from its official site and run the installer.
- Pick the Easy install if you are new, which uses the recommended defaults.
- Copy your game files into the folders EmuDeck created, one per console.
- Run Steam ROM Manager to add those games to your library with cover art.
- Return to Gaming mode and your emulated games are sitting there.
Community advice on r/SteamDeck and in Steam Deck discussions is consistent here: use the Easy mode first, get one console working end to end, then expand. People who try to hand-tune everything on day one are the ones who post frustrated threads. The default EmuDeck setup already runs the vast majority of retro systems smoothly, and owners regularly call it the feature that made the Deck feel worth it.
The legal note, read this
Emulators are legal. The games are the issue. You should only emulate games you actually own, and you should get the game files (ROMs and disc images) from your own cartridges and discs. Downloading games you do not own is copyright infringement in most places, full stop.
EmuDeck and the emulators it installs do not come with any games, on purpose. That is on you to provide, legally. Some systems also need a "BIOS" file to run, and those are copyrighted too, so the same rule applies: pull them from hardware you own. No legitimate emulation tool asks you to buy pirated games, and any site that bundles ROMs with a download should be treated with suspicion.
Installing Windows or dual-booting: the trade-offs
Some people want Windows on the Deck, usually to run a specific launcher, an anti-cheat game, or software that does not play nicely with SteamOS. You have two options, and both have real downsides.
- Full Windows install. You wipe SteamOS and install Windows instead. You gain broad compatibility but you lose the polished Gaming mode, the Quick Access menu, and a lot of the battery and suspend behavior that make the Deck pleasant. You are now managing a small Windows PC.
- Dual-boot. You keep SteamOS and add Windows alongside it, choosing at startup. This keeps both worlds, but setup is fiddly, dual-boot support has historically been rough, and you split your storage between two systems.
For most people, the honest answer is: do not bother. EmuDeck runs on SteamOS, so emulation does not need Windows at all. Unless you have one specific game or app that only runs on Windows, staying on SteamOS gives you a better handheld. If you do go the Windows route, expect to hunt for drivers and to lose some of the instant suspend and resume that SteamOS handles automatically.
FAQ
Do I need Windows to emulate on the Steam Deck? No. EmuDeck runs on SteamOS, which is what the Deck ships with. Windows only matters for specific games or apps that will not run on SteamOS, and it costs you the polished handheld experience.
Is EmuDeck free and safe? Yes, EmuDeck is free and open source, and it does not include any games. It only installs and configures emulators, so you supply your own legally obtained game files.
Is emulating games on the Steam Deck legal? The emulators are legal. Playing games you own from your own cartridges and discs is the intended use. Downloading games you do not own is copyright infringement, so stay on the right side of that.
Will emulation ruin my Steam Deck or void anything? Installing EmuDeck in Desktop mode is a normal, supported activity and does not harm the device. It is reversible, and it does not touch your Steam games.
How well do consoles actually run? Older systems run flawlessly, and mid-generation consoles run very well. The most demanding recent systems are hit or miss and depend heavily on the specific game, so check reports before expecting perfect performance.