Open Source C Game Engines
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C Game Engines
View 35 business solutionsBrowse free open source C Game Engines and projects below. Use the toggles on the left to filter open source C Game Engines by OS, license, language, programming language, and project status.
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Xash3D FWGS Engine
Xash3D FWGS engine
Xash3D FWGS is an open-source fork and extension of the original GoldSrc-based engine (from the classic era of first-person shooters), aimed at providing compatibility with the original engine (e.g. games built on it) while extending and modernizing its capabilities. The engine supports multiple rendering backends (OpenGL, GLES, software fallback), modern platforms (desktop OSes, mobile, etc.), and updated features such as better multiplayer, voice chat, IPv6 support, improved virtual filesystem, and support for modern asset formats. For modders or fans of classic games, Xash3D FWGS offers a way to play or build games using the familiar GoldSrc workflow but with updated portability and features. Legacy mods and maps for supported games can often be used unchanged (or with minimal modifications), preserving the classic experience. At the same time, the engine’s enhancements — modern input support (gamepad, touch), modern OS compatibility, cross-platform builds. -
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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. -
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Aleph One is the open source continuation of Bungie's Marathon 2 FPS game engine. Aleph One plays Marathon, Marathon 2, Marathon Infinity, and 3rd-party content on a wide array of platforms, with (optional) OpenGL rendering, Internet play, Lua scripting, and more.
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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. -
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ioquake3
The ioquake3 community effort to continue supporting/developing id's
ioquake3 is a free and open source first-person shooter engine derived from the Quake 3: Arena and Quake 3: Team Arena source code, maintained as a modern baseline engine for new games and classic mods. It is designed to let players run Quake 3, its expansion Team Arena, and community mods on contemporary systems while also serving as a solid base for new projects. The engine modernizes the original codebase with a CMake build system, an SDL2 backend for cross-platform windowing and input, and OpenAL sound for better audio quality and multi-speaker setups. It adds numerous quality-of-life improvements such as VoIP support, AVI demo capture, improved console completion and history, and optional Ogg Vorbis support. ioquake3 also improves portability and maintainability by supporting x86_64 on Linux, MinGW builds on Windows, and various other operating systems, and even provides web support via Emscripten. -
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Permafrost Engine
An OpenGL RTS game engine written in C
Permafrost Engine is an OpenGL 3.3 real-time strategy (RTS) game engine written in C, designed to capture the feel of classic RTS titles while incorporating modern rendering and AI techniques. It uses a programmable pipeline with features like skeletal animation with GPU skinning, Phong lighting, bump mapping, terrain texture splatting, water rendering with reflection and refraction, and skyboxes. The engine is tailored specifically for large-scale RTS gameplay, supporting huge maps, efficient batched rendering, hierarchical flow-field pathfinding, formation movement, boids-style steering behaviors, and GPU-accelerated crowd simulation. It integrates tightly with Python 2.7 for scripting, exposing engine internals to Python and even allowing serialization and restoration of the entire Python interpreter state for robust save/load systems. -
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Crown Engine
The flexible game engine
Crown is a general-purpose and data-driven game engine, written in orthodox C++ with a minimalistic and data-oriented design philosophy in mind. Every aspect of the game is controlled through text configuration files. Before shipping, configuration files are compiled to efficient platform-specific binary blobs. Data in memory is organized to achieve the maximum performance possible on every platform. Every game asset is hot-reloadable, code included. Evaluate modifications and adjustments on-the-fly without having to reboot the game every time. Runs and looks equally well both on Linux and on Windows. Designed to be as fail-safe as possible to never lose your work if crashes should occur. Engine plus tools amounts to less than 50K LOC. Written in simple 'C-style' C++. It is easy for anyone to understand and make modifications. All the code is released under the very permissive MIT license and can be downloaded via GitHub by anyone. -
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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. -
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Urho3D
Cross-platform 2D and 3D game engine
!!! The project repositories have been migrated to https://github.com/urho3d/Urho3D !!! -
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Smokin' Guns is a GPLv2 licensed first person Western style shooter based on the Quake 3 engine (Id Tech 3) developed by a loosely knit team of developers and artists. This project represents the game engine.
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OpenMoHAA is a game engine that is compatible with Medal of Honor: Allied Assault media and network protocol, based on the ioquake3 project.
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RetroGear
SDL based generic 2D game engine
RetroGear is a generic 2D game engine, designed for the simple and fast retro games development, like those of the 80s. The project aims to create generic components for rapid development of 2D games, based on the most common practices of game programming and design known, giving in the hands of the programmer, standard components and easy to integrate with their own projects. Some of the features offered by this game engine are: A basic but pratical game states management (screen titles, pre-game, game, game over, etc ...) Management of 2D maps, with practical and useful tools for managing graphics, scrolling and collisions. Functions for handling graphics at high and low level, with the addition of functionality to the management of animations of the game entities, in a fully automatic manner. Management of basic audio Scope of game dynamics and designed to be used in a variety of game types, so easy and fast, thanks to the dedicated functionality. -
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Haxima is an Ultima-like game engine (2D tile graphics) with combat, magic, NPC AI, an embedded scripting language, and in-game editing.
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olivechess
a UCI chess engine
OliveChess is a simple chess engine compatible with modern chess interfaces such as ChessBase products, Arena and XBoard/Winboard. The engine supports UCI and XBoard protocols. Note: in order to use it as an xboard engine you may need Polyglot tool to be installed first -
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CorEngine is a work in progress, OpenGL graphics powered 3D game engine designed to help independent game developers with quick prototyping and game/virtual environment creation. The engine supports a standard set of features, like skeletal animation, post processing, Lua/C programming, physics powered by Bullet Physics, GUI and 2D/3D Audio.
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ReBOOM
Conservative port of BOOM 2.02 to modern systems.
ReBOOM is a direct port of BOOM 2.02 to SDL2 aiming to be as close to the original as possible while adding Quality of Life features to it, such as always on stats. ReBOOM is demo compatible with BOOM 2.02. Please note, that this is essentially BOOM 2.02 compatible, it is NOT compatible with many wads 'claiming' to be Boom-compatible. Many of these modern Boom wads are in-fact only PRBoom-compatible and are not classed as Boom-compatible by myself or by historical Boom. It is pure fantasy. ReBOOM was primarily developed for GNU/Linux systems. -
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Pipmak is a cross-platform game engine and authoring environment for point-and-click adventure games in the style of the Myst series. It supports panoramic nodes and uses Lua for scripting.
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Generic 3D Game Engine
A basic 3D environment with a first-person POV
Despite being more graphically advanced than my 2D game engine, it isn't as well developed. Its original name was "3DWorld" because it simulated a 3-dimensional environment -and that's pretty much all it does. You can move around, pick up a cube, and jump using typical FPS controls. I started to implement the ability to shoot but it's still incomplete. This project has been put on hold in order to focus on my 2D game engine. -
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NakedTriad
An authentic Rise of The Triad Dark War source port
Naked Triad aims to be as close to the original Rise of The Triad: Dark War as possible. NakedTriad supports both GNU/Linux and Windows Operating Systems. For those wanting an experience close to how the original was, then NakedTriad is the most faithful source port on the internet (that works) and is fully 64bit clean. Enjoy. -
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Quantum Game Engine
A DirectX based graphics/physics engine
As of now, an independently developed graphics/physics engine for use with DirectX9/DirectX11 and C++. I'm only working on this during my free time, so it will not be updated too often unless I have something major to add to it. Outside insight would be appreciated. -
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Sprinkled Doom
A fork of Chocolate Doom with small Quality of Life enhancements
Sprinkled Doom is a fork of the latest Chocolate Doom with an emphasis on slight modernisation, allowing for Widescreen and enhancements such as Always Gibbing enemies. It is also a strong limit-removing source port with support for Hexen map formats and additional node support as well as several fixes for effects such as infinite ocean. Sprinkled Doom does not fix any bugs that appear in vanilla Doom. It is the only vanilla compatible Doom source port that retains the original look and feel while being Limit Removing. Sprinkled Doom is a Doom Only source port, unlike Chocolate Doom, this does not provide updates for Heretic, Hexen or Strife. -
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AquaEngine is supposed to be a modern game-engine with BulletPhysics in combination with ODE for vehicle physics. Rendering is using OGRE and OpenGL.
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Darius Game Engine
3D Game Engine
Cross platform 3D game engine based on OpenGL and C++ -
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DjDoom
Reference implementation for the Doom game engine.
DjDoom is a reference implementation for the original Doom game engine. The purpose of this project is to build a playable Doom engine from the original Linux source code with minimal changes necessary to build and run in a Windows environment. This was created as a learning tool for me and I'm publishing this so it can be a learning tool for others. It is intended that this be a base for others to build and expand on. -
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JavaScript game engine focused on 2D multi-player (networked) games. The idea is to provide a tool for learning by writing computer games. EGachine is based upon a extensible JavaScript shell (EJS) and modules providing functionality for writing games.
