Browse free open source C# Emulators and projects below. Use the toggles on the left to filter open source C# Emulators by OS, license, language, programming language, and project status.

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  • 1
    Locale Emulator

    Locale Emulator

    Yet another system region and language simulator

    Locale Emulator is a tool similar to AppLocale and NTLEA, providing a simulation function that can make an application recognize your OS as in a language other than the real one. It is quite useful when you are trying to play country-specific games. Locale Emulator is compatible with the following systems, both 32 and 64-bit, Windows 7 with Service Pack 1, Windows 8.1, and Windows 10. Locale Emulator supports 32-bit executables running on both 32-bit or 64-bit systems. For example, if you are using 64-bit WinRAR, you will not see the context menu on a RAR file unless you swapped 64-bit WinRAR with the 32-bit version. Clone the repo using Git, install Microsoft Visual Studio 2015 / 2017, open LocaleEmulator.sln, perform build action, clone and build the core libraries, and copy LoaderDll.dll and LocaleEmulator.dll from Locale-Emulator-Core to Locale-Emulator build folder.
    Downloads: 229 This Week
    Last Update:
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  • 2
    An open-source emulator for the 3DO Game Console.
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    Downloads: 148 This Week
    Last Update:
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  • 3
    SharpEmu

    SharpEmu

    An experimental PlayStation 5 emulator for Windows and Linux

    SharpEmu is a free, open-source PlayStation 5 emulator designed to bring PS5 emulation to Windows and Linux computers. Built from scratch in C#, the project focuses on accurately recreating the PS5's system architecture, CPU execution, and graphics functionality. SharpEmu can load executable files from real PS5 games, execute native CPU instructions, and handle certain GPU operations through the Vulkan graphics API. The emulator has been tested with games such as Demon's Souls Remake, ASTRO BOT, Gran Turismo 7, and ASTRO's PLAYROOM, although compatibility and performance remain limited. Users can launch games through a graphical interface or command-line tools, configure environment variables, and apply supported game patches. While SharpEmu is still experimental and not yet suitable for reliably playing most PS5 games, it offers developers, researchers, and emulation enthusiasts an open-source platform for exploring PlayStation 5 emulation.
    Downloads: 14 This Week
    Last Update:
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  • 4
    ASAP - Another Slight Atari Player
    ASAP (Another Slight Atari Player) plays and converts 8-bit Atari music (*.sap, *.cmc, *.mpt, *.rmt, *.tmc, ...) on modern computers and mobile devices.
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    Downloads: 89 This Week
    Last Update:
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  • 5
    DiIiS Project

    DiIiS Project

    Fully-functional open-source server implementation for Diablo 3

    Blizzless DiIiS is an open-source server implementation for Diablo III: Reaper of Souls that allows players to run the game in a fully local or private server environment. It recreates much of the game’s backend infrastructure, including account systems, matchmaking, progression mechanics, and gameplay logic. The project supports a wide range of in-game systems such as character classes, item generation, quests, and multiplayer interactions, aiming to replicate the original online experience without requiring Blizzard’s official servers. It includes features like dungeon generation, artificial intelligence for enemies, and support for both campaign and adventure modes. The server is designed to be deployable locally or over LAN, enabling cooperative play in controlled environments. While still under active development, it already implements a significant portion of the game’s systems, making it one of the most comprehensive private server projects for Diablo III.
    Downloads: 4 This Week
    Last Update:
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  • 6
    IKVM.NET is a JVM for the Microsoft .NET Framework and Mono. It can both dynamically run Java classes and can be used to convert Java jars into .NET assemblies. It also includes a port of the OpenJDK class libraries to .NET.
    Downloads: 7 This Week
    Last Update:
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  • 7
    ProjectPSX

    ProjectPSX

    Experimental C# Playstation Emulator

    ProjectPSX is an experimental PlayStation 1 emulator written entirely in C# that focuses on learning and exploring console hardware through a clean and dependency-free implementation. The project emulates key components of the PS1 architecture, including the MIPS R3000A CPU, GPU, DMA controller, and CD-ROM subsystem, all interconnected through a custom bus system. Unlike production-grade emulators, ProjectPSX is intentionally designed as a transparent and educational codebase, prioritizing simplicity and readability over full compatibility or performance optimization. It includes a software-based rasterizer for rendering 3D graphics and supports features such as memory cards, basic BIOS functionality, and controller input mapping. The emulator can run many commercial games to varying degrees, although timing inaccuracies and missing features can still cause instability.
    Downloads: 1 This Week
    Last Update:
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  • 8
    DosBlaster is a DOS game launcher to run DOS games. It requires DOSBOX (http://www.dosbox.com) as a backend to run the game. The users import the games and then run them.
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    Downloads: 13 This Week
    Last Update:
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  • 9
    An intel 8085 microprocessor emulator.
    Downloads: 9 This Week
    Last Update:
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  • 10
    The Free .NET ZX Spectrum Emulator, written in C#. An emulator of the 1980s home computer and various clones, that can work on various platforms with .NET environment.
    Downloads: 3 This Week
    Last Update:
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  • 11

    Input Control

    Log and Play Retro Controller Inputs

    Input Control is a project to allow users to create and play back logs of their play sessions on retro game consoles that use serial communication controllers. Only SNES is supported in the current version, but future updates can be expanded to most types of consoles. Firmware and some code originally based on jaburn's NintendoSpy project, but it has changed a lot for consistency and otherwise.
    Downloads: 6 This Week
    Last Update:
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  • 12
    Tiny8051
    Tiny8051 is small 8051 microcontroller simulator written in C#. Project was created for educational purposes, to show how µP works by using clean visual interface and debugging. Note: communication over serial port was not implemented, because there was no demand for it.
    Downloads: 3 This Week
    Last Update:
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  • 13

    CDTMaster

    Utility to edit CDT files (Amstrad Tape)

    Utility to edit CDT files (Amstrad Tape)
    Downloads: 5 This Week
    Last Update:
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  • 14
    Mobile Cursor

    Mobile Cursor

    No need to install from your phone. It uses browser as a controller.

    Control your mouse cursor from your phone, and you only need your web browser! No additional app required.
    Downloads: 5 This Week
    Last Update:
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  • 15
    OpenLCDSim - Open Source LCD Simulator

    OpenLCDSim - Open Source LCD Simulator

    Alpha Numeric Liquid Crystal Display simulator

    Simulates dot matrix liquid crystal display control (LCD) modules based on popular chips, specially HD44780 LCD controller/driver
    Downloads: 4 This Week
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  • 16
    "Slow CPU" Emulator

    "Slow CPU" Emulator

    Slows down any given Windows process (written in C#)

    "Slow CPU" Emulator is useful for slowing down games, testing how applications deal with lag, and/or reducing the overall CPU usage of a specified process. Simply tell the emulator the update interval and speed percentage, and witness your application slowing down to the specified speed live! The code is written in C# for Windows and is extremely robust, flexible and stable, and has been tested very thoroughly. I apologise in advance for the code not being very readable, sometimes spaghetti code is more optimised code. ;) If you encounter any issues, do not hesitate to tell me. :) License: MS-PL Do whatever you want with the code. Credit would be nice, but definitely not required. I am not responsible for any undesired or unintended effects that may (most probably won't) come up as a result of using the application.
    Downloads: 2 This Week
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    See Project
  • 17

    GameLauncher

    Frontend emulator launcher displaying box art image of associated ROMs

    A free front-end emulator displaying associated game box art image for each game. GameLauncher can be controlled using standard Xbox controller. ROM associated image files can be downloaded using following link: http://axter.com/GameLauncher/Images.zip
    Downloads: 1 This Week
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    See Project
  • 18
    JAMX - Just Another MAME Xhell. Definitive MAME Shell, and now full integration with Windows Desktop using XML power.
    Downloads: 1 This Week
    Last Update:
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  • 19
    Releases by No Name Development. All original code is released under the zlib/libpng License, the source to No Name MAME is released under MAME's own license.
    Downloads: 1 This Week
    Last Update:
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  • 20

    Tiny i8080 emulator

    Customized C# Intel 8080 emulator

    A new customized version of the very good project called "C# Intel 8080 emulator" by simontoft. Needs to be completed to run CP/M. Please support this project by donating to this fundraiser: ------------------------------------------- Give birth to new travel bicycles!!! https://gofund.me/2201d2a4 -------------------------------------------
    Downloads: 1 This Week
    Last Update:
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  • 21
    This project aims to provide a lightweight and easy to use library for interfacing with the Wii Remote. Applications that demonstrate the use of the library and the Wii Remote have also been developed.
    Downloads: 1 This Week
    Last Update:
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  • 22
    A 6502 processor simulator/development environment written in C#.
    Downloads: 0 This Week
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  • 23
    8088 Software Development Environment for the .NET & WIN32 platform. Program and control the windows pc with 8088 ML. Assemble, Disassemble, Emulate 8088 Assembler. Realtime I/O
    Downloads: 0 This Week
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  • 24
    ACPUProject

    ACPUProject

    ACPU Emulation and Design

    In this project I'll try to reinvent the wheel by designing the ACPU. In this Project I'll upload the official Emulator, Compiler and Docs -- !!! Anouncment !!! -- Searching Developer for USBSupport and one for OSDev -- !!! Anouncment !!! --
    Downloads: 0 This Week
    Last Update:
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  • 25
    Bartlett is a simplified installer, console, configurator and launcher for the PearPC project (PowerPC Emulator).
    Downloads: 0 This Week
    Last Update:
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