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

  • Red Hat Enterprise Linux on Microsoft Azure Icon
    Red Hat Enterprise Linux on Microsoft Azure

    Deploy Red Hat Enterprise Linux on Microsoft Azure for a secure, reliable, and scalable cloud environment, fully integrated with Microsoft services.

    Red Hat Enterprise Linux (RHEL) on Microsoft Azure provides a secure, reliable, and flexible foundation for your cloud infrastructure. Red Hat Enterprise Linux on Microsoft Azure is ideal for enterprises seeking to enhance their cloud environment with seamless integration, consistent performance, and comprehensive support.
  • Free and Open Source HR Software Icon
    Free and Open Source HR Software

    OrangeHRM provides a world-class HRIS experience and offers everything you and your team need to be that HR hero you know that you are.

    Give your HR team the tools they need to streamline administrative tasks, support employees, and make informed decisions with the OrangeHRM free and open source HR software.
  • 1
    Unity Hub

    Unity Hub

    Every creative journey starts with Unity Hub

    With Unity Hub start new projects using powerful templates. You can manage all of your Unity Projects and Editor installations. With a new look, you can customize your workflow, share and collaborate with your team, and more! From the Unity Hub, create and link a Unity Version Control repository to new projects, compare file sources, and link repositories to existing local projects for rapid iteration and collaboration with your team.
    Leader badge
    Downloads: 3,913 This Week
    Last Update:
    See Project
  • 2
    Exult
    A game engine for running Ultima7 on modern operating systems, plus a map-editor and other tools for creating your own mods and games.
    Leader badge
    Downloads: 736 This Week
    Last Update:
    See Project
  • 3
    Cube 2: Sauerbraten (game engine & FPS)
    3D game engine (more powerful redesign of the Cube engine) and FPS game
    Leader badge
    Downloads: 657 This Week
    Last Update:
    See Project
  • 4
    Godot Engine

    Godot Engine

    Godot is a powerful cross-platform game engine

    Godot was created to provide a fully free, open source game development environment. To compile from source see the official docs here https://docs.godotengine.org/en/latest/development/compiling/
    Downloads: 80 This Week
    Last Update:
    See Project
  • Manage your IT department more effectively Icon
    Manage your IT department more effectively

    Streamline your business from end to end with ConnectWise PSA

    ConnectWise PSA (formerly Manage) allows you to stop working in separate systems, and helps you build a more profitable business. No more duplicate data entries, inefficient employees, manual invoices, and the inability to accurately track client service issues. Get a behind the scenes look into the award-winning PSA that automates processes for each area of business: sales, help desk, support, finance, and HR.
  • 5
    QuakeSpasm

    QuakeSpasm

    A modern, cross-platform Quake game engine based on FitzQuake.

    QuakeSpasm is a *Nix friendly Quake Engine based on the SDL port of the popular FitzQuake. It includes some new features, important fixes, and aims for portability and 64 bit correctness.
    Leader badge
    Downloads: 426 This Week
    Last Update:
    See Project
  • 6
    San Andreas Unity

    San Andreas Unity

    Open source reimplementation of GTA San Andreas game engine in Unity

    San Andreas Unity is an open-source reimplementation of GTA San Andreas game engine in Unity. This won't be a complete reimplementation, but the focus is on gameplay features, multiplayer, and creating a framework that will allow easy game extension and unlimited modding possibilities. When running for the first time, the game will ask you for a path to GTA installation. You need to own GTA in order to play it. The game is tested on Linux, Windows, Mac, and Android. It supports both Mono and IL2CPP scripting backends, so it can be built for any platform that Unity supports, provided that you can copy PC version of GTASA to target device. Game fully works in multiplayer. You can start the game as dedicated server, as a host (server & client at the same time), or you can connect to a server. This works on all supported platforms, which means you can start a host even on Android device.
    Downloads: 48 This Week
    Last Update:
    See Project
  • 7
    Doomsday Engine

    Doomsday Engine

    DOOM / Heretic / Hexen source port with enhanced graphics and UI

    A portable game engine for classic first person shooters such as DOOM, Heretic and Hexen. Lets you enjoy the original games using modern technology, including high-resolution OpenGL graphics, 3D models, and dynamic lighting effects.
    Leader badge
    Downloads: 153 This Week
    Last Update:
    See Project
  • 8
    Ct.js

    Ct.js

    Ct.js is a desktop game engine that makes learning programming fun

    ct.js makes learning programming fun and game development easy by its visual tools, good docs and flexible, modular library. It is free, open-source, and is loved by hobbyists, professionals, teachers, and their students. Bad tools hinder your performance. Ct.js is designed to be like a brush with which you create games, not to be an enemy you will fight with. ct.js bundles come with offline docs, tutorials, and editable examples and demos. The code editor highlights errors and provides documentation right while writing your code. ct.js is based on Pixi.js, works on WebGL and provides great performance in browsers and desktop environments. Modules add new powers, and when ct.js is not enough, you can add any JS code or library. A small stylized adventure with AI-powered sea battles, violent environment, and little puzzle sections. Join the voyage to save a colony from a deadly disease!
    Downloads: 24 This Week
    Last Update:
    See Project
  • 9
    GemRB Game Engine

    GemRB Game Engine

    GemRB is a portable open-source implementation of the Infinity Engine

    GemRB (Game engine made with pre-Rendered Background) is a portable open-source implementation of Bioware's Infinity Engine. It was written to support pseudo-3D role playing games based on the Dungeons & Dragons ruleset (Baldur's Gate and Icewind Dale series, Planescape: Torment). It should run on GNU/Linux, Microsoft Windows, OS X, possibly other UNIX derivatives and more. It is licensed under the GPL.
    Leader badge
    Downloads: 112 This Week
    Last Update:
    See Project
  • Business Continuity Solutions | ConnectWise BCDR Icon
    Business Continuity Solutions | ConnectWise BCDR

    Build a foundation for data security and disaster recovery to fit your clients’ needs no matter the budget.

    Whether natural disaster, cyberattack, or plain-old human error, data can disappear in the blink of an eye. ConnectWise BCDR (formerly Recover) delivers reliable and secure backup and disaster recovery backed by powerful automation and a 24/7 NOC to get your clients back to work in minutes, not days.
  • 10
    XMage

    XMage

    Magic Another Game Engine

    XMage allows you to play Magic against one or more online players or computer opponents. It includes full rules enforcement for over 20 000 unique cards and more than 50.000 reprints from different editions. You can also find custom sets like Star Wars. All regular sets have nearly all implemented cards. It supports single matches and tournaments with dozens game modes like duel, multiplayer, standard, modern, commander, pauper, oathbreaker, historic, freeform and much more. Local server supports a special test mode for testing combos and other game situations with pre-defined conditions. There are public servers where you can play XMage against other players. You can also host your own server to play against the AI and/or your friends. Supports special formats like Commander (up to 10 players), Oathbreaker, Cube, Tiny Leaders, Super Standard, Historic Standard and more.
    Downloads: 20 This Week
    Last Update:
    See Project
  • 11
    Unreal Engine 4/5 Scripting System

    Unreal Engine 4/5 Scripting System

    Injectable LUA scripting system, SDK generator, live property editor

    Lua scripting system platform, C++ Modding API, SDK generator, blueprint mod loader, live property editor and other dumping utilities for UE4/5 games. The goal of UE4SS is not to be a plug-n-play solution that always works with every game. The goal is to have an underlying system that works for most games.
    Downloads: 19 This Week
    Last Update:
    See Project
  • 12
    PlayCanvas WebGL Game Engine

    PlayCanvas WebGL Game Engine

    Fast and lightweight JavaScript game engine built on WebGL and glTF

    PlayCanvas is an open-source game engine. It uses HTML5 and WebGL to run games and other interactive 3D content in any mobile or desktop browser. PlayCanvas is used by leading companies in video games, advertising and visualization such as Animech, Arm, BMW, Disney, Facebook, Famobi, Funday Factory, IGT, King, Miniclip, Leapfrog, Mojiworks, Mozilla, Nickelodeon, Nordeus, NOWWA, PikPok, PlaySide Studios, Polaris, Product Madness, Samsung, Snap, Spry Fox, Zeptolab, Zynga. The PlayCanvas Engine gives incredible performance, even on devices such as the iPhone 4S. PlayCanvas ensures a fast loading time by using multiple features such as script concatenation, minification, deferred loading of non-essential assets and more. PlayCanvas has many team features such as being able to chat with your teammates directly from within the Editor.
    Downloads: 15 This Week
    Last Update:
    See Project
  • 13
    PainTown

    PainTown

    Paintown is a 2d fighting game engine.

    Paintown is a 2d side scrolling beatem-up engine. Paintown supports game styles similar to the Sega Genesis game, Streets of Rage 2, as well as traditional 1 vs 1 fighting games through an implementation of MUGEN. Many aspects of Paintown are customizable, from the menu system to the levels and players that can be controlled. Paintown is highly portable. So far Paintown can run on Windows, OSX, Linux, BSD, Wii, PS3, Android and other systems.
    Downloads: 77 This Week
    Last Update:
    See Project
  • 14
    Multi Theft Auto: San Andreas

    Multi Theft Auto: San Andreas

    Multi Theft Auto is a game engine

    Multi Theft Auto (MTA) is a software project that adds network play functionality to Rockstar North's Grand Theft Auto game series, in which this functionality is not originally found. It is a unique modification that incorporates an extendable network play element into a proprietary commercial single-player PC game. Multi Theft Auto is based on code injection and hooking techniques whereby the game is manipulated without altering any original files supplied with the game. The software functions as a game engine that installs itself as an extension of the original game, adding core functionality such as networking and GUI rendering while exposing the original game's engine functionality through a scripting language. Originally founded back in early 2003 as an experimental piece of C/C++ software, Multi Theft Auto has since grown into an advanced multiplayer platform for gamers and third-party developers.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 15
    fheroes2

    fheroes2

    fheroes2 is a recreation of Heroes of Might and Magic II game engine

    fheroes2 is a recreation of the Heroes of Might and Magic II game engine. This open-source multiplatform project, written from scratch, is designed to reproduce the original game with significant improvements in gameplay, graphics and logic (including support for high-resolution graphics, improved AI, numerous fixes and user interface improvements), breathing new life into one of the most addictive turn-based strategy games. You can find a complete list of all of our changes and enhancements in its own wiki page.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 16
    Nuvie
    A game engine for running Origin's 'Ultima 6' and 'Ultima Worlds of Adventure' games on modern operating systems.
    Leader badge
    Downloads: 95 This Week
    Last Update:
    See Project
  • 17
    openage

    openage

    Open source clone of the Age of Empires II engine

    openage is a free cross-platform RTS game engine that provides the mechanics of Age of Empires. Using modern technologies as C++17, OpenGL/GLSL, Python, Qt5 and CMake allows people using GNU/Linux, BSD, macOS or Windows to play the game natively. Our aim is to make openage a platform for the original Age of Empires games providing the same look and feel, but with more features for modding and multiplayer. openage uses an open API powered by our human-readable configuration language nyan. We implement a client-server architecture with dedicated servers that supports more than 8 players. The overarching system will provide matchmaking, lobbies, server discovery and other community features. openage is a community project that values every contribution, the only requirement is your enthusiasm. Don't hesitate to get in touch with us if you want to help!
    Downloads: 10 This Week
    Last Update:
    See Project
  • 18
    MineTest

    MineTest

    Open source voxel game engine with support for survival and crafting

    An open source voxel game engine.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 19
    KorGE

    KorGE

    KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs

    KorGE is fully written in Kotlin and designed from the ground up to embrace modern and easy coding styles. KorGE gradle plugin allows to target each platform natively: JVM for Android, JS for the Web and native code for iOS and Desktop. Install the KorGE IntelliJ Plugin or clone the “Hello World!” project and start making your own game in less than a minute. Since KorGE targets the JVM, you can develop your game, try it, debug it and test it using IntelliJ IDEA. KorGE is just the last layer of a larger stack (Korlibs) for multimedia development. KorGE has a very small footprint. It has no external dependencies and only uses the libraries available on each platform. KorGE offers a powerful editor embedded in IntelliJ IDE. Easily add sourcecode and resources via GitHub.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 20
    Spring RTS Engine

    Spring RTS Engine

    Spring is a free RTS engine developed for Windows, Linux and Mac OS X.

    Spring is a versatile 3D RTS game engine. Using extensively Lua for scripting game-specific code to make nearly every aspect of the engine customizable, from GUI, to unit AI, to pathfinding.
    Downloads: 36 This Week
    Last Update:
    See Project
  • 21
    OpenRA

    OpenRA

    Real Time Strategy game engine supporting early Westwood classics

    OpenRA is a free and open source real-time strategy game engine for early Westwood games like Command & Conquer: Red Alert. It is not just a clone of the original but is a recreation, with improved and rebalanced gameplay that modernizes the classic Command & Conquer strategy games. It provides a common platform for rebuilding and reimagining classic 2D and 2.5D RTS games (the OpenRA mods). This means that OpenRA is not restricted by the technical limitations of the original closed-source games: it includes native support for modern operating systems and screen resolutions (including Windows 10, Mac OS X, and most Linux distros) without relying on emulation or binary hacks, and features integrated online multiplayer.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 22
    Pyxel

    Pyxel

    A retro game engine for Python

    A retro game engine for Python. Thanks to its simple specifications inspired by retro gaming consoles, such as only 16 colors can be displayed and only 4 sounds can be played back at the same time, you can feel free to enjoy making pixel art style games. The motivation for the development of Pyxel is the feedback from users. Please give Pyxel a star on GitHub! Pyxel's specifications and APIs are inspired by PICO-8 and TIC-80. Pyxel is open source and free to use. Let's start making a retro game with Pyxel! Runs on Windows, Mac, Linux, and Web. Using the Pyxel Web Launcher or custom elements for HTML, you can run Pyxel in a web browser without any installation work. Pyxel supports a dedicated application distribution file format (Pyxel application file) that works across platforms. 8 musics that can combine arbitrary sounds.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 23
    VASSAL Engine
    VASSAL is a game engine for creating electronic versions of traditional board and card games. It provides support for game piece rendering and interaction, and supports play by email or over a live connection.
    Downloads: 27 This Week
    Last Update:
    See Project
  • 24
    OpenXRay

    OpenXRay

    Improved version of the X-Ray Engine, the game engine

    Improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World. Join OpenXRay! OpenXRay is an improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World. We want to keep the game as close as possible to the vanilla game, so instead of introducing new gameplay features, consider adding non-gameplay features, fixing bugs, improving performance and code quality. The dev branch is the default and base branch for the project. It is used for development and all Pull Requests should go there. But, be aware that this branch, sometimes, may be broken and, rarely, we can do force pushes to this branch.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 25
    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: 5 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next