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  • 1
    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
    Last Update:
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  • 2
    microStudio

    microStudio

    Free, open source game engine online

    microStudio is a free, open source game engine online. It is also a platform to learn and practice programming. microStudio can be used for free. You can also install your own copy, to work locally or on your own server for your team or classroom. microStudio is available online, this is the simpler and the preferred way, you will have access to all the online collaboration features, online publishing, and more export features. You don't even need to create an account, you can start working as a guest. microStudio includes all you need to write code, create sprites and maps for your 2D game. All from your web browser. Your project is stored in the cloud, and accessible from anywhere. Write your game code in microScript, a simple language inspired by Lua. The documentation is always there to help. Create cool demos in just a few lines of code. microScript shines by its simplicity and interactivity. But you can also code in JavaScript, Python, or Lua if you prefer.
    Downloads: 5 This Week
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  • 3
    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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  • 4
    Ebitengine

    Ebitengine

    A dead simple 2D game engine for Go

    Ebitengine (formerly known as Ebiten) is a lightweight, open-source 2D game engine built for the Go programming language. It is designed to be simple and easy to use, allowing developers to build games quickly with a clean and minimal API. Ebitengine supports cross-platform deployment, including desktop, mobile, web, and select console platforms. The engine provides essential features such as 2D graphics rendering, input handling, and audio playback. Developers can work with transformations, shaders, and offscreen rendering to create polished visuals. Built-in support for keyboards, mice, gamepads, and touch input ensures flexible control schemes. Overall, Ebitengine focuses on productivity and portability while maintaining strong performance.
    Downloads: 4 This Week
    Last Update:
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  • Failed Payment Recovery for Subscription Businesses Icon
    Failed Payment Recovery for Subscription Businesses

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  • 5
    HaxeFlixel

    HaxeFlixel

    Free, cross-platform 2D game engine powered by Haxe and OpenFL

    HaxeFlixel is an open-source 2D game framework built on top of the cross-platform toolkit Haxe + OpenFL, designed to allow developers to build games that can run on web, desktop, and mobile targets from a single codebase. Because it uses Haxe and OpenFL, HaxeFlixel games can compile to many targets: native desktop (Windows, macOS, Linux), mobile (Android, iOS), as well as web (HTML5), and even historically Flash. It is licensed under MIT and completely free for personal or commercial use. HaxeFlixel emphasizes ease of use and rapid development for 2D games — ideal for pixel-art platformers, card games, puzzles, or 2D action games. It includes common utilities and abstractions for sprites, animations, input handling, game loops, asset management, and state transitions, making it easier to build a complete game without reinventing core infrastructure. Because of this, it has been used for successful indie games and prototypes alike, and remains a popular choice among developers.
    Downloads: 4 This Week
    Last Update:
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  • 6
    Torque3D

    Torque3D

    MIT Licensed Open Source version of Torque3D from GarageGames

    Torque3D is an open-source, cross-platform 3D game engine originally developed by GarageGames that has been actively maintained and enhanced by the community. As a mature and full-featured engine, Torque3D provides developers with a comprehensive editor suite that supports terrain sculpting, environment creation, and complex scene design, alongside powerful tools for materials, particle effects, and visual scripting. It has robust support for physics, animation, lighting, shaders, and networking, making it suitable for a wide range of 3D applications from driving simulators to multiplayer games and interactive experiences. Using modern shader pipelines, support for COLLADA and other model formats, and advanced rendering techniques such as deferred lighting and volumetric effects, Torque3D allows creators to build visually rich worlds that can be deployed on Windows, macOS, Linux, and even the web.
    Downloads: 4 This Week
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  • 7
    Trial

    Trial

    A modular Common Lisp game engine

    Trial is a real-time, 3D game engine written in Common Lisp, offering a modern and modular approach to game development using the expressive power of Lisp. Built on top of the cepl graphics framework, Trial combines live-coding capabilities with powerful abstractions for building simulations, scenes, and interactive applications. It emphasizes flexibility, clarity, and developer control, making it an appealing choice for experimental games, visualizations, and research projects that benefit from dynamic development environments and rapid prototyping.
    Downloads: 4 This Week
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  • 8
    Urho3D

    Urho3D

    Urho3D Game engine

    Urho3D is a game engine made by developers, for developers. The code is clean and well-commented. Urho3D is free and will always be free. There is no hidden royalties. It is IDE-agnostic and has no vendor lock-in. Urho3D runs on Windows, Linux, macOS/iOS/tvOS, Android, and even on Raspberry Pi. It also runs on your browsers. You need an installed Urho3D library for the desired target platform to proceed. Although the Urho3D build system also supports linking the Urho3D library directly from its build tree, this quick start section will not be discussing it here. Assuming you have been following along from the previous section, execute the following commands to create a new UrhoApp project, and then build it. The build artifacts from DBE can be found in the usual location as the conventional (non-dockerized) build environment. In fact the build artifacts from DBE should function and work as if they are built using the conventional way too.
    Downloads: 4 This Week
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  • 9
    dhewm 3

    dhewm 3

    dhewm 3 main repository

    dhewm3 is a source port of the original Doom3 (not Doom3 BFG, for that you may want to try RBDoom3BFG). It’s known to work on Windows, Linux, macOS, FreeBSD, OpenBSD and AROS, but it should work on (or be easily portable to) any system that supports OpenGL 1.4 with ARB shaders, SDL and OpenAL. Compared to the original version of Doom3, dhewm3 has many bugfixes, supports EAX-like sound effects on all operating systems and hardware (via OpenAL Softs EFX support), has much better support for widescreen resolutions and has 64bit support. It only supports old Mods if they either don’t require their own game DLL or have been ported to dhewm3. Note that while the Doom3 source code has been released under GPL, you still need to legally own the game and provide dhewm3 the game data to play. See the How to Install section for more information.
    Downloads: 4 This Week
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    MicroStation by Bentley Systems is the trusted computer-aided design (CAD) software built specifically for infrastructure design.

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  • 10
    melonJS

    melonJS

    A fresh & lightweight javascript game engine

    melonJS is an open-source HTML5 game engine that empowers developers and designers to focus on content. The framework provides a collection of composable entities and support for a number of third-party tools. Giving you a powerful combination that can be used wholesale or piecemeal. melonJS is a lightweight yet powerful HTML5 framework designed from the ground up to provide a true plugin-free 'write-once, run-everywhere' gaming platform. melonJS is an open-source project and supported by a community of enthusiasts. See our Gallery for a few examples of games powered by melonJS. melonJS integrates the popular Tiled map format, allowing designers easily create levels using the Tiled map editor, and to focus on the game features itself. A fresh and lightweight 2D sprite-based engine. Fast WebGL renderer for desktop and mobile devices with fallback to Canvas rendering.
    Downloads: 4 This Week
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  • 11
    KonsolScript and Game Engine

    KonsolScript and Game Engine

    Free and Open Game Programming Language for Windows and GNU/Linux

    KonsolScript is a free and open source, scripting language primarily intended for 2D games development. KonsolScript Development Team believes that the unavailability of games on GNU/Linux desktops is one of the major concerns why people keep using unauthorized copies of proprietary OS over GNU/Linux and that is something the Development Team is ought to address – we are doing our part to help promote GNU/Linux as a viable gaming platform for desktops both for Game Publishers and Gamers. The whole Game Development Kit is suitable for teaching 2D game programming. The end goal of this project is to have a common gaming platform for Windows, GNU/Linux, Mac OS, including mobile platforms like Android where any newbie can learn how to make his game/animation etc. A lot of work has been made and a lot more is to be done. It might need to hire programmers to make an engine for Android, and Mac OS, then some in-house testers for stability among these platform
    Downloads: 28 This Week
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  • 12
    AndEngine

    AndEngine

    Free Android 2D OpenGL Game Engine

    AndEngine is a Java-based, open-source 2D game engine for Android, designed to make mobile game development easier by wrapping OpenGL (GLES) under a higher-level API. It abstracts much of the complexity of directly using OpenGL, letting developers more quickly build games with sprites, tilemaps, physics (via extensions), animations, and input handling, all within the Android ecosystem. Because it's tailored for Android, AndEngine integrates with typical Android project structure and lifecycle, although historically it was more aligned with Eclipse — meaning some adaptation might be needed for modern Android Studio projects. It enjoys a substantial community, many forks and extensions (for physics, tilemaps, multiplayer, live wallpapers, etc.), which increases its versatility — from simple casual games to more feature-rich 2D titles.
    Downloads: 3 This Week
    Last Update:
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  • 13
    Jolt Physics

    Jolt Physics

    A multi core friendly rigid body physics and collision detection lib

    A multi core friendly rigid body physics and collision detection library suitable for games and VR applications, used by Horizon Forbidden West. So why create yet another physics engine? First of all, this has been a personal learning project and secondly I wanted to address some issues that I had with existing physics engines. In games we usually need to do many more things than to simulate the physics world and we need to do this across multiple threads. We therefore place a lot of emphasis on concurrently accessing the physics simulation data outside of the main physics simulation update. Sections of the world can be loaded / unloaded in the background. A batch of physics bodies can be prepared on a background thread without locking or affecting the physics simulation and then inserted into the world all at once with a minimal impact on performance.
    Downloads: 3 This Week
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  • 14
    Lumix Engine

    Lumix Engine

    3D C++ Game Engine - yet another open source game engine

    Lumix Engine is an open-source C++ 3D game engine that aims to strike a balance between performance, flexibility, and ease of use, making it a compelling alternative to heavier commercial engines. It features a modern, component-based design (entity-component-system) and offers a full editor — enabling developers to build games in a WYSIWYG style similar to engines like Unity, while staying in a lightweight, open environment. The engine supports advanced rendering (with PBR, HDR, deferred rendering), physics, audio, animation, scripting (via Lua or even JavaScript via plugin), and more, giving it a robust feature set for realistic 3D games or simulations. Users appreciate that much of the engine — rendering, assets, scripting, editor — can be hot-reloaded, which greatly speeds up iteration. It runs on Windows and Linux, is MIT-licensed, and is backed by a community that provides documentation, demos, and examples (such as a demo platformer).
    Downloads: 3 This Week
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  • 15
    Mojoc

    Mojoc

    A cross-platform, open-source, pure C game engine for mobile game

    Mojoc is an open-source, cross-platform, pure C game engine. It is based on OpenGLES3 and written in C99. It currently works on IOS and Android, but can easily be extended to other platforms, and will support more platforms in the future. In platform-independent code, Mojoc uses only the standard C library, no dependence on third-party libraries. Mojoc uses an extremely lightweight OOC (Object Oriented C) programming model. Mojoc application architecture is based on components, state-machines and is message-driven. Mojoc has been used for a cross-platform Android and IOS game. The samples will show all aspects of the Mojoc features. Each platform will provide native building project for native platform editor. For example Android provides AndroidStudio project, IOS provides XCode project.
    Downloads: 3 This Week
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  • 16
    OpenSAGE

    OpenSAGE

    OpenSAGE is a free, open source re-implementation of SAGE

    OpenSAGE is an open-source reimplementation of the SAGE game engine originally used in classic real-time strategy games such as Command and Conquer Generals and Battle for Middle-earth. The project aims to recreate the engine in a modern, maintainable codebase while preserving compatibility with original game assets and behavior. It is written primarily in C# and focuses on accuracy, ensuring that gameplay mechanics, rendering behavior, and system interactions closely match the original engine. OpenSAGE allows developers and enthusiasts to study, modify, and extend the engine without relying on proprietary software. It also serves as a preservation effort, ensuring that older games built on the SAGE engine can continue to run on modern systems. The architecture is designed to be modular, enabling future enhancements and experimentation with new features.
    Downloads: 3 This Week
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  • 17
    nCine

    nCine

    A cross-platform 2D game engine

    nCine is a cross-platform 2D game engine that runs on PC (Linux, Windows, macOS), Android, Raspberry Pi, and the web (Emscripten). The project has been in active development since June 2011. Source code is released under the MIT license and is available on GitHub. Visit the donate page to discover different ways to support and sponsor the project. Join the Discord server and meet the community of developers, users and players. Indent with tabs (4 spaces) but use spaces for continuation line alignment. Pascal case for classes, enumerations, typedefs and constants. Put Doxygen brief descriptions in header files and additional documentation in implementation ones. Use Qt style for Doxygen detailed descriptions (/*! */) and end them with a period.
    Downloads: 3 This Week
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  • 18
    Rainway: Game Streaming - Play Anywhere

    Rainway: Game Streaming - Play Anywhere

    Download Rainwayapp Play anywhere Your PC games on all your favorite

    All your PC games no matter where they're from. On all your screens at home and on the go.
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    Downloads: 44 This Week
    Last Update:
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  • 19
    Rails: an 18xx game system
    Rails is a Java game engine intended to play any of the 18xx series of turn-based board games For 3-6 players and set in the 19th century, these games allow players to step into the shoes of the robber barons and railroad tycoons of the time period..
    Downloads: 14 This Week
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  • 20
    CoffeeMud

    CoffeeMud

    Full featured MUD server with all the trimmings.

    CoffeeMud is a text-based virtual reality game engine (a MUD). It is a mature, full-featured Java codebase. It includes web (HTTP) and email (SMTP) servers, chat (IMC2 and I3) and web clients, and supports ANSI, MXP, and MSP.
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    Downloads: 13 This Week
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  • 21
    Castle Game Engine

    Castle Game Engine

    Game engine supporting many 3D/2D formats and graphic effects

    This project has moved to: - Our website https://castle-engine.io/ - GitHub repo: https://github.com/castle-engine/castle-engine/ Cross-platform 3D and 2D game engine for Object Pascal. Rendering and processing of game assets in glTF, X3D, VRML, Collada, Spine and other formats. Many graphic effects including shadows, shaders, mirrors, screen effects. Animation, collision detection, 3D sound. Extensible system of 3D objects, with out-of-the-box levels, items, intelligent creatures and more. Desktop, mobile, web plugin. Also home of view3dscene - our full-featured VRML/X3D browser.
    Downloads: 12 This Week
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  • 22
    Atomic Game Engine

    Atomic Game Engine

    The Atomic Game Engine is a multi-platform 2D and 3D engine

    Atomic Game Engine is an open-source, cross-platform game engine that supports both 2D and 3D game development, giving developers flexibility in choosing the style and scope of their projects. It provides a full suite of engine tools — rendering, scene management, input, asset pipelines, scripting (C++ and optionally JavaScript), and more — which allows teams or solo developers to build rich interactive applications and games without assembling disparate libraries. Because of this versatility, AtomicGameEngine is useful both for small indie games and more ambitious 3D or hybrid projects, especially if developers want an engine that doesn’t lock them into heavy runtime dependencies or license costs. Its architecture encourages modularity and ease of use while still giving access to powerful graphics and engine systems. For developers with C++ experience (or comfortable with JavaScript for scripting), AtomicGameEngine offers a balance between power and ease-of-use.
    Downloads: 2 This Week
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  • 23
    Clay

    Clay

    High performance UI layout library in C

    Clay (short for “C Layout”) is a high-performance 2D UI layout library in C, offering a declarative, Flexbox-like layout model with microsecond performance. It features a single-header design, zero dependencies, and support for WebAssembly, making it lightweight yet powerful for responsive UI rendering. The Clay macro by default accepts an ID as its first argument, which is usually provided by the CLAY_ID() convenience macro. Elements can also be created with auto-generated IDs, by using the CLAY_AUTO_ID() macro. Element IDs have two main use cases. Firstly, tagging an element with an ID allows you to query information about the element later, such as its mouseover state or dimensions. Secondly, IDs are visually useful when attempting to read and modify UI code, as well as when using the built-in debug tools.
    Downloads: 2 This Week
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  • 24
    Excalibur

    Excalibur

    An easy to use 2D HTML5 game engine written in TypeScript

    An open-source 2D HTML5 game engine. Excalibur was built from the ground up for TypeScript, a typed superset of JavaScript that feels familiar to C#, Java, and other strongly-typed languages. This makes Excalibur code clean, readable, and maintainable. Excalibur has a fully-documented API reference that is automatically kept up-to-date with every version, including the main code branch. Excalibur games compile to modern JavaScript and therefore work in the majority of browsers, including mobile. Since Excalibur games are "just JavaScript", you can use native app packaging wrappers like Apache Cordova, Universal Windows Apps, or Electron to create cross-platform games. Tons of features to help build your game quickly.
    Downloads: 2 This Week
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  • 25
    GamePlay

    GamePlay

    Open-source, cross-platform, C++ game engine for creating 2D/3D games

    GamePlay (also known as Gameplay3D) is an open-source, cross-platform C++ game engine and framework that supports both 2D and 3D game development on desktop and mobile platforms. Designed to be lightweight yet powerful, it provides developers with robust tools for graphics rendering, scene management, audio, physics, input, and more, as well as templates and tools to help jumpstart projects. The framework emphasizes ease of use and portability, offering native support for Windows, macOS, Linux, iOS, and Android so developers can write their game once and deploy it across many platforms. With an Apache 2.0 license, developers have broad flexibility to use, modify, and distribute their projects commercially or personally. GamePlay also includes a well-documented API, tooling for asset processing, and examples that demonstrate how to use its systems effectively, making it approachable for both indie developers and experienced programmers.
    Downloads: 2 This Week
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