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ThePSPwas an excellent handheld console with a library of games covering classic JRPGs, action, sports, and more. Thanks tohandheld PCs like the Steam Deckand the emulation program EmuDeck, you can run digital copies of your favorite PSP games without using the UMDs. Furthermore, it preserves the lifespan and condition of the many collectible and rare titles for the PSP. This guide will show you how to install EmuDeck and run PSP games from the Steam Deck’s Gaming mode next to the line of official games.
Updated July 03, 2025, by Michael Llewellyn: With the right tools in place, PSP games are the perfect fit for the Steam Deck. As well as EmuDeck, you’ll need Decky Loader to run the Power Tools plugin. However, the latest versions of Decky Loader require a Sudo Password to gain administrative access and install certain third-party apps that change the functionality of the Steam Deck. This guide is updated to include the steps to create a Sudo Password to install Decky Loader and access it via the EmuDeck program.
Before Installing EmuDeck
The EmuDeck app and its compatible emulators require some mandatory and optional tool items before getting started:
Activate Developer Mode On The Steam Deck
Activating Developer Mode on the Steam Deck can give you access to more features and customize the handheld to run plugins, emulators, and more. Use the following steps to activate Developer Mode.
The Steam Deck is updated frequently, and some updates can deactivate CEF Remote Debugging. This can disable plugins and programs like emulators and useful apps like Decky Loader. If you run the Steam Deck in beta mode, the Steam Deck will get more requested updates. Check your Developer settings after every update.
How To Install EmuDeck On The Steam Deck For PSP Games
Use the following steps to install the EmuDeck on the Steam Deck:
How To Transfer ROM Files
Adding Games To The Steam Library
With the PSP ROM files in the correct folders. It’s time to add the games to the Steam Deck library to play them in Gaming Mode. Use the following steps to add PSP games and their cover art to the Steam library in a Collections tab:
There are double copies of the artwork displayed in the Steam ROM Manager because of the two versions of the PSP emulator. If a game doesn’t run on one version, it should launch on the other.
Fix Missing Artwork In Steam ROM Manager
The Steam ROM Manager can find the cover art for most games, but there may be instances where imported, older, or modded games can pull up the incorrect covers or show a blank frame. Use the following steps to fix and locate different artwork within the Steam ROM Manager:
Uploading Missing Artwork
There is a possibility that the Steam ROM Manager may not have any cover art available for the uploaded game. As a result, you’ll need to upload your own.
With the artwork uploaded, follow the next steps to ensure the games are uploaded to the Steam library:
Improve PSP game Performance by pressing the button with the three dots underneath the right trackpad. Open the Performance menu switch on Use per-game profile and increase the Frame Limit to 60 FPS (60 Hz).
There are two emulators; if one doesn’t work, then try the other. For example,Lunar Silver Star Harmonyonly worked from the tab labeled PSP - Standalone PPSSPP emulator.
Saving The Game
The emulator features a save-anywhere system, which is vital for portable gaming. You can use the game’s regular saving method, but the emulated saves offer multiple save slots, which can be useful for challenging titles. Use the following steps to activate the new save system:
Install Decky Loader On The Steam Deck
It is advised to connect a connected or wireless keyboard and mouse to the Steam Deck to improve navigation. As an alternative, you can use the trackpads and keyboard onscreen. With the help of a tool called Decky Loader, you can add plugins like Power Tools to improve your experience with emulated games and get more control over the Steam Deck’s performance. The instructions to install Decky Loader are as follows:
Setting Up A New Sudo Password
verify you use a memorable Sudo Password or keep it somewhere safe. Resetting your Sudo Password may require a factory reset on the Steam Deck.
Install The Power Tools Plugin
With Decky Loader installed, you can add the Power Tools plugin with the following steps:
Power Tools Settings For Emulated Games
Restoring Decky Loader
That’s everything players need to know to run PSP games on the Steam Deck, add artwork, and improve the performance of their game.
