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

  • Field Sales+ for MS Dynamics 365 and Salesforce Icon
    Field Sales+ for MS Dynamics 365 and Salesforce

    Maximize your sales performance on the go.

    Bring Dynamics 365 and Salesforce wherever you go with Resco’s solution. With powerful offline features and reliable data syncing, your team can access CRM data on mobile devices anytime, anywhere. This saves time, cuts errors, and speeds up customer visits.
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  • Outbound sales software Icon
    Outbound sales software

    Unified cloud-based platform for dialing, emailing, appointment scheduling, lead management and much more.

    Adversus is an outbound dialing solution that helps you streamline your call strategies, automate manual processes, and provide valuable insights to improve your outbound workflows and efficiency.
    Learn More
  • 1
    Entitas Game Engine

    Entitas Game Engine

    Entitas is a super fast Entity Component System (ECS) Framework

    Entitas is a super fast Entity Component System Framework (ECS) specifically made for C# and Unity. Internal caching and blazing-fast component access make it second to none. Several design decisions have been made to work optimally in a garbage-collected environment and to go easy on the garbage collector. Entitas comes with an optional code generator which radically reduces the amount of code you have to write and makes your code read like well-written prose. Entitas is fast, and light and gets rid of unnecessary complexity. There are less than a handful of classes you have to know to a rocket start your game or application. The Code Generator generates classes and methods for you, so you can focus on getting the job done. It radically reduces the amount of code you have to write and improves readability by a huge magnitude. It makes your code less error-prone while ensuring the best performance.
    Downloads: 5 This Week
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  • 2
    Stride

    Stride

    Stride (formerly Xenko), a free and open-source cross-platform C# game

    Stride (formerly known as Xenko) is a full-featured, open-source game engine written in C# and targeting the .NET ecosystem, designed for both 2D and 3D games — and even VR experiences. Stride offers a comprehensive toolchain: an editor for scene building, asset management, a rendering pipeline with physically-based rendering (PBR), and support for advanced graphics features such as real-time reflections, post-processing effects, and complex materials (skin, hair, cloth, etc.). Because it’s built on modern C# and .NET, developers can take advantage of modern language features (C# 14, .NET 10), tooling (Visual Studio, VS Code, Rider), and long-term maintainability. The engine supports cross-platform development: you can build for desktop, mobile, or VR, and target multiple operating systems. Stride is modular and customizable: you can tailor rendering, physics, scripting, and other subsystems to suit your game’s needs.
    Downloads: 5 This Week
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  • 3
    XBox One Controller Battery Indicator

    XBox One Controller Battery Indicator

    Tray application that shows a battery indicator for an Xbox controller

    A tray application that shows a battery indicator for an Xbox-ish controller and gives a notification when the battery level drops to (almost) empty. It was originally written for the XBox One controller since Microsoft dropped all visual hints for low battery, but it should work with any gamepad that can be addressed via XInput (which should be all controllers that work in XBox-controller-enabled games). Download the link for a "ready to run" version at the bottom of this page(or under "Releases" in the side bar)! When more than one controller is present, the tray icon will cycle through the status display every 5 seconds.
    Downloads: 5 This Week
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  • 4
    osu!framework

    osu!framework

    A game framework written with osu! in mind.

    A game framework written with osu! in mind. If you are interested in creating a project using the framework, please start from the getting started wiki resources (or jump straight over to the project templates). You can either start off from an empty project, or take a peek at a working sample game. Either way, full project structure, cross-platform support, and a testing setup are included! This framework is intended to take steps beyond what you would normally expect from a game framework. This means things like basic UI elements, text rendering, advanced input handling (textboxes) and performance overlays are provided out-of-the-box. Any of the osu! code that is deemed useful to other game projects will live in this framework project. Anywhere we implement graphical components, they will be displayed with a generic design and will be derivable for further customization.
    Downloads: 5 This Week
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  • Inventory and Order Management Software for Multichannel Sellers Icon
    Inventory and Order Management Software for Multichannel Sellers

    Avoid stockouts, overselling, and losing control as your business grows.

    We are the most powerful inventory and order management platform for Amazon, Walmart, and multichannel product sellers. Centralize orders, product information, and fulfillment operations to run more efficiently, sell more products, and stay compliant with marketplace requirements so you can grow profitably.
    Learn More
  • 5
    Diablo 3 Key Spammer

    Diablo 3 Key Spammer

    Automatically activates skills in Diablo 3 game.

    This application helps players to automatically activate skills in Diablo 3 game. You don't need to bash your keyboard and your fingers won't hurt anymore. There are 4 selectable options how to activate each of 6 skills. Disabled - app won't touch that skill. Timer Based - skill key is pushed every [timer ms] interval, regardless if skill can be activated. Push and Hold - skill key is pushed every [timer ms] interval and not released, similar to 'numlock trick'. IsAvailable Based - every [timer ms] is checked if skill can be activated and app does so if skill is ready. For help with settings check out Wiki page.
    Downloads: 23 This Week
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  • 6
    Minecraft Mod Language Package

    Minecraft Mod Language Package

    A language package for Minecraft Mods

    Minecraft Mod Language Package is an open-source localization project that provides translations for a wide range of Minecraft mods, primarily focusing on Simplified Chinese. The repository collects translation files and tools used to convert mod content into localized versions that can be applied directly in the game. The project was created to address common issues where mod developers do not provide official translations or where updates to translations are delayed. Contributors collaborate to maintain dictionaries, translation guidelines, and localization tools that help standardize terminology across many different mods. The translated resources can be installed as resource packs or through specialized tools that automatically update translations when mods change.
    Downloads: 4 This Week
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  • 7
    AutoActions
    With AutoActions, you can created profiles which included several actions. You can change display settings, set default audio devices or launch any other script or program. Once you have added an application and assigned a profile to it, AutoActions will monitor this application and will run the actions based on the assigned profile. More info: https://github.com/Codectory/AutoActions
    Downloads: 103 This Week
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  • 8
    Minecraft Texture Studio

    Minecraft Texture Studio

    Easily create resource packs for Minecraft

    Easily create resource packs for minecraft. Program automatically detects your minecraft installation and imports the textures from minecraft allowing you to edit them easily, and import them into minecraft. You can also save your resource pack and give them them to friends, backup them up or post them online. Includes a 3D preview of all the blocks in minecraft and any changes you make to the textures is shown straight away on the preview
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    Downloads: 102 This Week
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  • 9
    Trancity is simulator of public transport, where you can operate the tram, trolley or bus, as well as create a city where traffic will be established to work on your routes and schedules.
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    Downloads: 59 This Week
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  • The Most Powerful Software Platform for EHSQ and ESG Management Icon
    The Most Powerful Software Platform for EHSQ and ESG Management

    Addresses the needs of small businesses and large global organizations with thousands of users in multiple locations.

    Choose from a complete set of software solutions across EHSQ that address all aspects of top performing Environmental, Health and Safety, and Quality management programs.
    Learn More
  • 10
    C# SDL
    SDL.NET is a set of object-oriented .NET bindings for the SDL gaming library and provides high-level access to audio, keyboard, mouse, joystick, TTF fonts, various image formats, sound mixing, MPEG-1, and 2D video framebuffer.
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    Downloads: 32 This Week
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  • 11
    MGE is a project that wraps the various DirectX dlls used by Morrowind. Despite it's name, it wraps the input and sound dlls as well as graphics. It also interfaces with MWSE to make even more functions available to modders.
    Downloads: 17 This Week
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  • 12
    ClassicUO

    ClassicUO

    An open source implementation of the Ultima Online Classic Client

    ClassicUO is an open-source, modern client for Ultima Online, a beloved MMORPG originally released in the late 1990s. Designed as a drop-in replacement for outdated clients, ClassicUO supports high performance, modding, and quality-of-life improvements while preserving the game's core look and mechanics. It’s built using .NET Core and runs cross-platform, offering smoother input, faster rendering, and extensibility for private servers. The project is community-driven and continues to evolve in parallel with the fan-maintained ClassicUO ecosystem.
    Downloads: 3 This Week
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  • 13
    FPS Sample

    FPS Sample

    A first person multiplayer shooter example project in Unity

    The FPS Sample was created for internal validation of features and packages available at the time of Unity 2018.3 and is available for download including all assets. Game code that includes unsupported custom netcode with an authoritative server architecture supporting up to 16 players (not recommended for use in production). It’s intended as a source of inspiration and learning for intermediate and experienced developers using Unity 2018.3 or Unity 2018.4 LTS releases. It’s using experimental tech. Please note that the project is not supported and we highly recommend upgrading to supported packages if you wish to use parts of the project as a starting point for your own. Use it to learn about the latest features in Unity, extract and use the parts you need or use the full project as a starting point for your own games.
    Downloads: 3 This Week
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  • 14
    Dawn of Light

    Dawn of Light

    Dark Age of Camelot server emulator

    Sourceforge is discontinued, now on Github: https://github.com/Dawn-of-Light Framework for interacting with the Dark Age of Camelot client (Mythic, EA/Mythic, BioWare, Broadsword licensed). Also know as a Dark Age of Camelot ( DAoC ) Server Emulator. Give life to your own world ! Please consider playing live: http://www.darkageofcamelot.com
    Downloads: 15 This Week
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  • 15
    Doom Shareware Installer for Windows x64

    Doom Shareware Installer for Windows x64

    Doom (Shareware) Installer for Windows x64 platforms.

    Doom (Shareware) Installer for Windows x64. Total* download is just over 3.90 MB It currently REQUIRES a 64-bit (x64) version of Windows to work. This tool is 'Steam Inspired', Open Source and costs nothing. Unlike Steam it DOES NOT download 90MB of 'updates' to complete itself after a ~1.50MB download. The whole tool is currently just 474 KB once extracted. Download: http://sourceforge.net/projects/dooms-19-winx64/files/latest/download Source Code available at: http://sourceforge.net/projects/dooms-19-winx64/files/source/ Report Bugs, Issues, Annoyances, Exceptions, etc. at: http://sourceforge.net/p/dooms-19-winx64/discussion/bugs/ Separate Forum for Improvements at: http://sourceforge.net/p/dooms-19-winx64/discussion/improvements/ This is just episode one (Shareware), unless you have legit DOOM and copy the IWAD into the PrBoom folder. No plasma rifle or BFG9000 in shareware either. In future versions I will add support for other Source Ports...
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    Downloads: 42 This Week
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  • 16

    CoCEd

    A save editor for the game "Corruption of Champions".

    CoCEd has moved to GitHub ( https://github.com/tmedwards/CoCEd ).
    Downloads: 39 This Week
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  • 17
    2D isometric MMORPG using the SDL framework. Daimonin offers a free public server at https://www.daimonin.org . A Unity client is also in active development.
    Downloads: 12 This Week
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  • 18

    coldev

    C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT

    + C/C++ and PHP projects, Python and Others + 3D ENGINES + Videogames Projects based in Bennugd http://www.bennugd.org Web Page https://coldev.sourceforge.io/
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    Downloads: 66 This Week
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  • 19
    Roblox Auto Clicker & Macro

    Roblox Auto Clicker & Macro

    Roblox but have auto clicker. Don't waste your time for click.

    Free auto clicker for Roblox. You don't need to click manually, let us do it for you. This program made by UfukGames and supporting 3 languages (Türkçe,Deutsch, English). You can use this program as an macro also. This program scanned before published.
    Downloads: 39 This Week
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  • 20
    An application that can extract, replace and view the files as cards, sound effects and music from the Yu Gi Oh! Power of Chaos PC games. It is written in C# .NET. Aplicación que puede extraer y manipular los archivos de YuGiOh Power of Chaos, cartas,et
    Downloads: 34 This Week
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  • 21
    SubtitleCreator allows you to create new subtitles for your DVD's. It has a Wizard interface, advanced synchronization features, DVD preview, and a simple WYSIWYG editor. The latest version even has support for Karaoke.
    Downloads: 21 This Week
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  • 22
    Gpro Organiser 2
    GPro Organizer (Go) is a tool designed to help managers of the gpro.net online game in collecting datas.
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    Downloads: 60 This Week
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  • 23
    Oblivion Works
    Wrye Bash has moved to Github! Downloads: https://github.com/wrye-bash/wrye-bash/releases Code: https://github.com/wrye-bash/wrye-bash
    Downloads: 11 This Week
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  • 24
    UniRx

    UniRx

    Reactive extensions for Unity

    UniRx (Reactive Extensions for Unity) is a reimplementation of the .NET Reactive Extensions. The Official Rx implementation is great but doesn't work on Unity and has issues with iOS IL2CPP compatibility. This library fixes those issues and adds some specific utilities for Unity. Supported platforms are PC/Mac/Android/iOS/WebGL/WindowsStore/etc and the library. Ordinarily, Network operations in Unity require the use of WWW and Coroutine. Rx cures that kind of "asynchronous blues". Rx is a library for composing asynchronous and event-based programs using observable collections and LINQ-style query operators. The game loop (every Update, OnCollisionEnter, etc), sensor data (Kinect, Leap Motion, VR Input, etc.) are all types of events. Rx represents events as reactive sequences which are both easily composable and support time-based operations by using LINQ query operators.
    Downloads: 2 This Week
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  • 25
    UniTask

    UniTask

    Provides efficient allocation free async/await integration for Unity

    Provides an efficient allocation free async/await integration for Unity. Struct-based UniTask<T> and custom AsyncMethodBuilder to achieve zero allocation. Makes all Unity AsyncOperations and Coroutines awaitable. PlayerLoop-based task(UniTask.Yield, UniTask.Delay, UniTask.DelayFrame, etc..) that enables replacing all coroutine operations. MonoBehaviour Message Events and uGUI Events as awaitable/async-enumerable. Runs completely on Unity's PlayerLoop so doesn't use threads and runs on WebGL, wasm, etc. Asynchronous LINQ, with Channel and AsyncReactiveProperty. TaskTracker window to prevent memory leaks. Highly compatible behavior with Task/ValueTask/IValueTaskSource. In UniTask v2, almost everything is zero-allocated due to a thorough rewrite of the code (Technical details to follow). In addition to significant performance improvements, the new asynchronous sequences, and Asynchronous LINQ.
    Downloads: 2 This Week
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