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Fast PlayStation 1 emulator for x86-64/AArch32/AArch64

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DuckStation - PlayStation 1, aka. PSX Emulator

Latest News | Features | Screenshots | Downloading and Running | Building | Disclaimers

Discord Server: https://discord.gg/Buktv3t

Latest Builds for Windows and Linux (AppImage) https://github.com/stenzek/duckstation/releases/tag/latest

Game Compatibility List: https://docs.google.com/spreadsheets/d/1H66MxViRjjE5f8hOl5RQmF5woS1murio2dsLn14kEqo/edit

Wiki: https://www.duckstation.org/wiki/

DuckStation is an simulator/emulator of the Sony PlayStation(TM) console, focusing on playability, speed, and long-term maintainability. The goal is to be as accurate as possible while maintaining performance suitable for low-end devices. "Hack" options are discouraged, the default configuration should support all playable games with only some of the enhancements having compatibility issues.

A "BIOS" ROM image is required to to start the emulator and to play games. You can use an image from any hardware version or region, although mismatching game regions and BIOS regions may have compatibility issues. A ROM image is not provided with the emulator for legal reasons, you should dump this from your own console using Caetla or other means.

Features

DuckStation features a fully-featured frontend built using Qt, as well as a fullscreen/TV UI based on Dear ImGui.

Main Window Screenshot Fullscreen UI Screenshot

Other features include:

  • CPU Recompiler/JIT (x86-64, armv7/AArch32 and AArch64)
  • Hardware (D3D11, D3D12, OpenGL, Vulkan) and software rendering
  • Upscaling, texture filtering, and true colour (24-bit) in hardware renderers
  • PGXP for geometry precision, texture correction, and depth buffer emulation
  • Adaptive downsampling filter
  • Post processing shader chains
  • "Fast boot" for skipping BIOS splash/intro
  • Save state support
  • Windows, Linux, highly experimental macOS support
  • Supports bin/cue images, raw bin/img files, MAME CHD, single-track ECM, MDS/MDF, and unencrypted PBP formats.
  • Direct booting of homebrew executables
  • Direct loading of Portable Sound Format (psf) files
  • Digital and analog controllers for input (rumble is forwarded to host)
  • Namco GunCon lightgun support (simulated with mouse)
  • NeGcon support
  • Qt and NoGUI frontends for desktop
  • Automatic updates for Windows builds
  • Automatic content scanning - game titles/hashes are provided by redump.org
  • Optional automatic switching of memory cards for each game
  • Supports loading cheats from existing lists
  • Memory card editor and save importer
  • Emulated CPU overclocking
  • Integrated and remote debugging
  • Multitap controllers (up to 8 devices)
  • RetroAchievements
  • Automatic loading/applying of PPF patches

System Requirements

  • A CPU faster than a potato. But it needs to be x86_64, AArch32/armv7, or AArch64/ARMv8, otherwise you won't get a recompiler and it'll be slow.
  • For the hardware renderers, a GPU capable of OpenGL 3.1/OpenGL ES 3.0/Direct3D 11 Feature Level 10.0 (or Vulkan 1.0) and above. So, basically anything made in the last 10 years or so.
  • SDL, XInput or DInput compatible game controller (e.g. XB360/XBOne). DualShock 3 users on Windows will need to install the official DualShock 3 drivers included as part of PlayStation Now.

Downloading and running

Binaries of DuckStation for Windows x64/ARM64, Linux x86_64 (in AppImage format), and Android ARMv7/ARMv8 are available via GitHub Releases and are automatically built with every commit/push. Binaries or packages distributed through other sources may be out of date and are not supported by the developer, please speak to them for support, not us.

Windows

Windows 10 is the only version of Windows supported by the developer. Windows 7/8 may work, but is not supported. I am aware some users are still using Windows 7, but it is no longer supported by Microsoft and too much effort to get running on modern hardware. Game bugs are unlikely to be affected by the operating system, however performance issues should be verified on Windows 10 before reporting.

To download:

Once downloaded and extracted, you can launch the emulator with duckstation-qt-x64-ReleaseLTCG.exe. To set up:

  1. Either configure the path to a BIOS image in the settings, or copy one or more PlayStation BIOS images to the bios/ subdirectory. On Windows, by default this will be located in C:\Users\YOUR_USERNAME\Documents\DuckStation\bios. If you don't want to use the Documents directory to save the BIOS/memory cards/etc, you can use portable mode. See User directory.
  2. If using the Qt frontend, add the directories containing your disc images by clicking Settings->Add Game Directory.
  3. Select a game from the list, or open a disc image file and enjoy.

If you get an error about vcruntime140_1.dll being missing, you will need to update your Visual C++ runtime. You can do that from this page: https://support.microsoft.com/en-au/help/2977003/the-latest-supported-visual-c-downloads. Specifically, you want the x64 runtime, which can be downloaded from https://aka.ms/vs/17/release/vc_redist.x64.exe.

Windows 7 users, TLS 1.2 is not supported by default and you will not be able to use the automatic updater or RetroAchievements. This knowledge base article contains instructions for enabling TLS 1.1/1.2: https://support.microsoft.com/en-us/topic/update-to-enable-tls-1-1-and-tls-1-2-as-default-secure-protocols-in-winhttp-in-windows-c4bd73d2-31d7-761e-0178-11268bb10392

The Qt frontend includes an automatic update checker. Builds downloaded after 2020/08/07 will automatically check for updates each time the emulator starts, this can be disabled in Settings. Alternatively, you can force an update check by clicking Help->Check for Updates.

Universal Windows Platform / Xbox One

The DuckStation fullscreen UI is available for the Universal Windows Platform and Xbox One.

To use on Xbox One:

  1. Ensure your console is in developer mode. You will need to purchase a developer license from Microsoft.
  2. Download the duckstation-uwp.appx file.
  3. Navigate to the device portal for your console (displayed in the home screen).
  4. Install the appx file by clicking Add in the main page.
  5. Set the app to Game mode instead of App mode: Scroll down to DuckStation in the listinng, press the Change View button, select View Details, and change App to Game.
  6. Upload a BIOS image to the local state directory for DuckStation, or place your BIOS image on a removable USB drive. If using a USB drive, you will need to set the BIOS path in DuckStation's settings to point to this directory.
  7. Add games to the local state games directory, or use a removable USB drive. Again, you will have to register this path in Game List Settings for it to scan.
  8. Launch the app, and enjoy. By default, the Change View button will open the quick menu.
  9. Don't forget to enable enhancements, an Xbox One S can do 8x resolution scale with 4K output, Series consoles can go higher.

NOTE: I'd recommend using a USB drive for saving memory cards, as the local state directory will be removed when you uninstall the app.

Linux

DuckStation does support Linux, but no support will be provided by the developer due to the huge range and variance of distributions. AppImage builds are provided, but we are not obliged to provide any assistance or investigate any issues, i.e. use at your own risk. However, these binaries may be incompatible with older Linux distros (e.g. Ubuntu distros earlier than 20.04 LTS) due to older distros not providing newer versions of the C/C++ standard libraries required by the AppImage binaries. If you are using a packaged version of DuckStation from another source, please do not ask us for assistance and speak to your packager instead.

Binaries

Linux users are encouraged to build from source when possible and optionally create their own AppImages for features such as desktop integration if desired.

To download:

macOS

MacOS builds are no longer provided, as I cannot support a platform which I do not own hardware for, and I'm not spending $1000+ out of my own pocket for a machine which I have no other use for.

You can still build from source, but you will have to debug any issues encountered yourself.

If anyone is willing to volunteer to support the platform to ensure users have a good experience, I'm more than happy to re-enable the releases.

Android

You will need a device with armv7 (32-bit ARM), AArch64 (64-bit ARM), or x86_64 (64-bit x86). 64-bit is preferred, the requirements are higher for 32-bit, you'll probably want at least a 1.5GHz CPU.

Google Play is the preferred distribution mechanism and will result in smaller download sizes: https://play.google.com/store/apps/details?id=com.github.stenzek.duckstation

No support is provided for the Android app, it is free and your expectations should be in line with that. Please do not email me about issues about it, they will be ignored. This repository should also not be used to raise issues about the app, as it does not contain the app code, only the desktop versions.

If you must use an APK, download links are:

Download link: https://www.duckstation.org/android/duckstation-android.apk

Changelog link: https://www.duckstation.org/android/changelog.txt

To use:

  1. Install and run the app for the first time.
  2. Add game directories by tapping the add button and selecting a directory. You can add additional directories afterwards by selecting "Edit Game Directories" from the menu.
  3. Tap a game to start. When you start a game for the first time it will prompt you to import a BIOS image.

If you have an external controller, you will need to map the buttons and sticks in settings.

LibCrypt protection and SBI files

A number of PAL region games use LibCrypt protection, requiring additional CD subchannel information to run properly. libcrypt not functioning usually manifests as hanging or crashing, but can sometimes affect gameplay too, depending on how the game implemented it.

For these games, make sure that the CD image and its corresponding SBI (.sbi) file have the same name and are placed in the same directory. DuckStation will automatically load the SBI file when it is found next to the CD image.

For example, if your disc image was named Spyro3.cue, you would place the SBI file in the same directory, and name it Spyro3.sbi.

Building

Windows

Requirements:

  • Visual Studio 2019
  1. Clone the respository with submodules (git clone --recursive https://github.com/stenzek/duckstation.git -b dev).
  2. Open the Visual Studio solution duckstation.sln in the root, or "Open Folder" for cmake build.
  3. Build solution.
  4. Binaries are located in bin/x64.
  5. Run duckstation-qt-x64-Release.exe or whichever config you used.

Linux

Requirements (Debian/Ubuntu package names):

  • CMake (cmake)
  • SDL2 (libsdl2-dev, libxrandr-dev)
  • pkgconfig (pkg-config)
  • Qt 5 (qtbase5-dev, qtbase5-private-dev, qtbase5-dev-tools, qttools5-dev)
  • libevdev (libevdev-dev)
  • git (git) (Note: needed to clone the repository and at build time)
  • When Wayland is enabled (default): libwayland-dev libwayland-egl-backend-dev extra-cmake-modules
  • Optional for RetroAchievements (on by default): libcurl (libcurl4-gnutls-dev)
  • Optional for framebuffer output: DRM/GBM (libgbm-dev, libdrm-dev)
  • Optional for faster building: Ninja (ninja-build)
  1. Clone the repository. Submodules aren't necessary, there is only one and it is only used for Windows (git clone https://github.com/stenzek/duckstation.git -b dev).
  2. Create a build directory, either in-tree or elsewhere.
  3. Run CMake to configure the build system. Assuming a build subdirectory of build-release, run cmake -Bbuild-release -DCMAKE_BUILD_TYPE=Release. If you have installed Ninja, add -GNinja at the end of the CMake command line for faster builds.
  4. Compile the source code. For the example above, run cmake --build build-release --parallel.
  5. Run the binary, located in the build directory under bin/duckstation-qt.

macOS

NOTE: macOS is highly experimental and not tested by the developer. Use at your own risk; things may be horribly broken. Vulkan support may be unstable, so sticking to OpenGL or software renderer is recommended.

Requirements (can be installed with Homebrew):

  • CMake (installed by default? Otherwise, run brew install cmake)
  • SDL2 (brew install sdl2)
  • Qt 5 (brew install qt5)

Optional (recommended for faster builds):

  • Ninja (brew install ninja)
  1. Clone the repository. Submodules aren't necessary; there is only one and it is only used for Windows (git clone https://github.com/stenzek/duckstation.git -b dev).
  2. Clone the macOS externals repository (for MoltenVK): git clone https://github.com/stenzek/duckstation-ext-mac.git dep/mac.
  3. Run CMake to configure the build system: cmake -Bbuild-release -DCMAKE_BUILD_TYPE=Release -DBUILD_NOGUI_FRONTEND=OFF -DBUILD_QT_FRONTEND=ON -DUSE_SDL2=ON -DQt5_DIR=/opt/homebrew/opt/qt@5/lib/cmake/Qt5 depending on your system. If you have installed Ninja, add -GNinja at the end of the CMake command line for faster builds. Depending on your system, the Qt5_DIR value may have to be different (e.g. /usr/local/opt/qt@5/lib/cmake/Qt5).
  4. Compile the source code: cmake --build build-release --parallel.
  5. Run the binary, located in the build directory under bin/DuckStation.app. If the app crashes on startup, resign it using macOS Gatekeeper Helper.

User Directories

The "User Directory" is where you should place your BIOS images, where settings are saved to, and memory cards/save states are saved by default. An optional SDL game controller database file can be also placed here.

This is located in the following places depending on the platform you're using:

  • Windows: My Documents\DuckStation
  • Linux: $XDG_DATA_HOME/duckstation, or ~/.local/share/duckstation.
  • macOS: ~/Library/Application Support/DuckStation.

So, if you were using Linux, you would place your BIOS images in ~/.local/share/duckstation/bios. This directory will be created upon running DuckStation for the first time.

If you wish to use a "portable" build, where the user directory is the same as where the executable is located, create an empty file named portable.txt in the same directory as the DuckStation executable.

Bindings for Qt frontend

Your keyboard or game controller can be used to simulate a variety of PlayStation controllers. Controller input is supported through DInput, XInput, and SDL backends and can be changed through Settings -> General Settings.

To bind your input device, go to Settings -> Controller Settings. Each of the buttons/axes for the simulated controller will be listed, alongside the corresponding key/button on your device that it is currently bound to. To rebind, click the box next to the button/axis name, and press the key or button on your input device that you wish to bind to. When binding rumble, simply press any button on the controller you wish to send rumble to.

SDL Game Controller Database

DuckStation releases ship with a database of game controller mappings for the SDL controller backend, courtesy of https://github.com/gabomdq/SDL_GameControllerDB. The included gamecontrollerdb.txt file can be found in the database subdirectory of the DuckStation program directory.

If you are experiencing issues binding your controller with the SDL controller backend, you may need to add a custom mapping to the database file. Make a copy of gamecontrollerdb.txt and place it in your user directory (or directly in the program directory, if running in portable mode) and then follow the instructions in the SDL_GameControllerDB repository for creating a new mapping. Add this mapping to the new copy of gamecontrollerdb.txt and your controller should then be recognized properly.

Default bindings

Controller 1:

  • D-Pad: W/A/S/D
  • Triangle/Square/Circle/Cross: Numpad8/Numpad4/Numpad6/Numpad2
  • L1/R1: Q/E
  • L2/R2: 1/3
  • Start: Enter
  • Select: Backspace

Hotkeys:

  • Escape: Power off console
  • ALT+ENTER: Toggle fullscreen
  • Tab: Temporarily disable speed limiter
  • Space: Pause/resume emulation

Screenshots

Monkey Hero Ridge Racer Type 4 Tomb Raider 2 Quake 2 Croc Croc 2 Final Fantasy 7 Mega Man 8 Final Fantasy 8 in Fullscreen UI Spyro in Fullscreen UI Threads of Fate in Fullscreen UI Game Grid

Disclaimers

Icon by icons8: https://icons8.com/icon/74847/platforms.undefined.short-title

"PlayStation" and "PSX" are registered trademarks of Sony Interactive Entertainment Europe Limited. This project is not affiliated in any way with Sony Interactive Entertainment.

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Fast PlayStation 1 emulator for x86-64/AArch32/AArch64

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