Open Source C Game Engines
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C Game Engines
View 34 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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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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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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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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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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Handmade Math
A simple math library for games and computer graphics
A single-file, cross-platform, public domain game math library for C/C++. Fully inlined HandmadeMath.h. No need for HANDMADE_MATH_IMPLEMENTATION anymore. Added extra parentheses around some macros. Renamed the 'Rows' member of hmm_mat4 to 'Columns'. Since our matrices are column-major, this should have been named 'Columns' from the start. 'Rows' is still present, but has been deprecated. Added array subscript operators for vector and matrix types in C++. This is provided as a convenience, but be aware that it may incur an extra function call in unoptimized builds. Made HMM_Power faster, Fixed possible efficiency problem with HMM_Normalize, RENAMED HMM_LengthSquareRoot to HMM_LengthSquared, RENAMED HMM_RSqrtF to HMM_RSquareRootF, RENAMED HMM_SqrtF to HMM_SquareRootF, REMOVED Inner function (user should use Dot now), REMOVED HMM_FastInverseSquareRoot function declaration. -
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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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IRE is a tile-based Computer Role-Playing Game engine based on Ultima 6, but with an emphasis on customisation and cross-platform support. Everything is controlled using scripts.
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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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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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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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Orx: Portable Game Engine
Orx: Portable Game Engine
Orx is a portable, lightweight, plugin-based, data-driven and extremely easy to use 2D-oriented game engine. As orx is data driven, it allows users to create games with a small number of lines of code and reduces drastically the development time. -
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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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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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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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euphoriasdk
A complete 2D Game Engine with built in drag and drop editor
Euphoria is a 2 Game Engine and Development kit for aspiring game designers who are interested in getting their feet wet in the world of game design and programming. Some features of the engine are: - 2D levels and basic rasterized rendering - Simple animations and timer systems - A complete embedded Lua 5.1 scripting environment for level scripting - A drag and drop level designer - Support for all standard Windows Media Player compatible media types - Background Music - Sound Effects - Simple object collision detection - Pseudo 3D for making simulated 3D with 2D graphics - Scriptable Menus, buttons, etc - Custom Lua file manipulation libraries and script engine binding - Cut scene videos - Open Source What Euphoria is NOT: - A professional game design engine (maybe someday) - Bug free - Size Efficient (textures are stored as bitmaps - 3D - Covered Under Warranty - A Game, this is a Kit to BUILD a game -
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OpenTomb
Game engine for playing tomb raider 1 - 5 levels.
PLEASE NOTE: Project development moved to Github! https://github.com/opentomb Here you can find ONLY nightly builds for Windows. OpenTomb is an engine that can play classic Tomb Raider 1 - 5 levels and custom TRLE levels. It is developed for fans and fun. Some code was taken from OpenRaider project and Quake Tenebrae project. Resource loading routines are taken from http://icculus.org/vt/vt/ project. It is developing in netbeans 7 + GCC TDM 4.9.2 Used libraries: SDL2, SDLimage with jpeg and png libs, vorbis (ogg support), OpenGL, OpenAL, freetype 2, LUA, BULLET. Youtube engine work example: http://www.youtube.com/watch?v=Jf3JGm67oS0 I need some help in game behavior algorithms, level parsing, e.t.c. Needed for work: 1) Original Tomb Raider levels 2) Font .ttf 3) Config files (config.lua and autoexec.lua) -
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NakedHexen
A conservative source port of Hexen that is identical to DOS
NakedHexen is an ultra conservative source port aiming to be nearly identical to DOS in every way possible. No uncapped framerates, no dehacked, no extended menus or enemies, no window mode, only DOS Hexen ported to SDL2. Note: CD Music is NOT supported here. -
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A platform independent 2d game programming framework for c/c++ programmers with least possible dependencies for easy porting and with focus on easy api calls and the requirement of commercial programmers
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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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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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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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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.
