Open Source Mac Game Engines
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Game Engines for Mac
View 24 business solutionsBrowse free open source Game Engines and projects for Mac below. Use the toggles on the left to filter open source Game Engines by OS, license, language, programming language, and project status.
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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. -
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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. -
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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. -
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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. -
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OpenDiablo2
An open source re-implementation of Diablo 2
This is an open-source re-implementation of the classic action-RPG Diablo II (including its expansion) — or rather, a game engine that can run it. The engine is written in Go and cross-platform, aiming to bring the feel of the original 2000s-era ARPG to modern systems. Because the project does not include the original game assets, users must supply their legally purchased copy of Diablo II / Lord of Destruction; the engine then loads the MPQ archives and runs the game. The project is organized into a core engine (now evolving into a more generic 2D ARPG engine under Abyss Engine) plus toolset and support libraries. While still a work-in-progress, OpenDiablo2 has made strides: the main menu works, character selection and basic UI panels load, and movement in the first act is possible. The goal is eventually to support full gameplay — potentially allowing modders or developers to extend or make new games atop the engine. -
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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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3DWorld
3D Procedural Game Engine Using OpenGL
3DWorld is a cross-platform OpenGL-based 3D Game Engine that I've been working on since I took the CS184 computer graphics course at UC Berkeley in 2001. I converted the project from svn to git at commit 6607. Most of the code is written in C++, with GLSL for shaders. This is intended to be a cross-platform project. Microsoft Visual Studio 2019 and 2022 project files are included. A linux/gcc makefile is also included, but is more experimental. See README.linux for more details. The project should build under gcc on linux with some work, but it's been a while since I tried this. I have an old makefile that is out of date, but may not take too much work to fixup and make it usable. Realtime day/night cycle with weather (rain, snow, hail, wind, lightning). Physically based materials with reflection and refraction. Dynamic shadows, ambient occlusion, up to 1024 dynamic light sources, postprocessing effects. Built-in first person shooter game "smiley killer". -
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Descent 3
Descent 3 by Outrage Entertainment
The Descent3 repository is the open source release of the Descent 3 game engine by Outrage Entertainment, maintained by the community under the GPL-3.0 license. It provides the full C and C++ engine source code, including the historically significant “1.5” patch that was previously created by developers and later stabilized by fans. The codebase covers the game’s rendering, physics, audio, networking, tools, and editor components, allowing enthusiasts to build, run, and modify the classic 6-degrees-of-freedom space shooter on modern systems. To actually play the game, users must supply their own original game assets, following instructions in the repository’s usage documentation. The project uses CMake and related modern tooling for cross-platform builds, with support for Linux and Windows among other environments. A dedicated community maintains the engine, publishes updated releases, documents internals on a wiki, and coordinates contributions via an active Discord server and GitHub. -
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VCMI Project
Open-source engine for Heroes of Might and Magic III
VCMI is work-in-progress attempt to recreate engine for Heroes III, giving it new and extended possibilities. To use VCMI you need to own original data files. -
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[EN] This page is dedicated to scripts for Farming Simulator's Giants Editor. [BR] Essa página é dedicada a scripts para o editor Giants Editor de Farming Simulator.
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EasyRPG Player
RPG Maker 2000/2003 and EasyRPG games interpreter
EasyRPG Player is a game interpreter to play RPG Maker 2000, 2003, and EasyRPG games. It uses the LCF parser library (liblcf) to read RPG Maker game data. EasyRPG Player is a program that allows to play games created with RPG Maker 2000 and 2003. It aims to be a free (as in freedom) cross-platform RPG Maker 2000/2003 interpreter. The main goal is to play all games created with them as the original game interpreter (RPG_RT) does. This project is being developed. FreeType2 for external font support (+ HarfBuzz for Unicode text shaping) mpg123 for better MP3 audio support. WildMIDI for better MIDI audio support. Libvorbis / Tremor for Ogg Vorbis audio support. opusfile for Opus audio support. libsndfile for better WAVE audio support. libxmp for better tracker music support. SpeexDSP for proper audio resampling. -
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OpenRW
Recreation of the classic Grand Theft Auto III game executable
OpenRW is a cross-platform, open-source re-implementation of the game engine behind Grand Theft Auto III (GTA III). Its goal is to recreate the original gameplay engine in a modern, maintainable codebase so that GTA III can run natively on modern Windows, Linux, macOS, and BSD systems — long after the original executable becomes unworkable. The project does not ship with game content: users still need a legitimate copy of GTA III (with its original assets) to play, making OpenRW strictly an engine reimplementation, not a re-distribution. By re-writing the engine from scratch under a permissive, community-friendly license (GPLv3), OpenRW ensures long-term preservation, mod-friendliness, and better hardware compatibility (modern GPUs, controllers, cross-platform input, etc.). For developers, it also offers tools such as a “script tracer” to inspect in-game scripts opcode by opcode, a data-file viewer (RWViewer) for studying object data, models, and map files. -
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A MMORPG Game Engine Writted in Monogame GL full C# Very easy to make a game. With simple Level Editor. Whit cross-plattform Server on .NET Core Tecnology Build your Cross-Platform Game whitout programming! Aviable for Xbox one, PS4, Android, iOS and more platform. Try Live Demo: http://www.makingitalia.net/MireWEB/ Project are migrated on Mire Engine. See Updated at: http://www.makingitalia.net/mire/
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Gold Chest is a new game engine inspired by the old gold-box styled RPG games. My goal is to create a game with the same Look and Feel of the gold-box games while bringing to it newer graphics, sounds, music and network play.
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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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gbDoom3
A fork of dhewm3 with an emphasis on modernisation and vanilla Doom 3
gbDoom3 is a fork of dhewm3 with a series of modernisations, performance improvements and an emphasis on being bug-compatible with vanilla Doom 3. This does NOT support the BFG edition of Doom 3. This fork was created to give an overhaul to Doom 3 that the parent project isn't willing to do. Performance improvements for macOS (Intel and M1) as well as additional assembler code for such systems, removing legacy code for SSE support, making Carmack's reverse standard and reverting all config file changes to allow gbDoom3 to be a perfect drop-in replacement for Doom 3. For all intents and purposes, this is the only Doom 3 port you need. -
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Cardhouse is an online card game engine that supports a wide variety of games. The client is independent of the card game rules and new games can be added to the server without it having to reboot.
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Classic Video-Audio Presentation
A Tile-based Game Engine written in C# mimicing retro consoles.
The CVAP game engine is a low-level framework for producing tilemapped games akin to classical consoles such as the Super NES or the Sega Genesis. It is written to provide video, audio, and input support analagous to these systems. -
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Cyber Knight is a game engine for developing educational software for computer science. The platform features an isometric tile engine and a code visualizer for python.
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Falltergeist
Opensource crossplatform Fallout 2 game engine writen in C++ and SDL
Opensource crossplatform Fallout 2™ engine writen in C++ and SDL. Falltergeist is an opensource alternative for Fallout 2 and Fallout 1 game engines. It uses C++, SDL and OpenGL. Falltergeist requires original Fallout resources to work. You could add dependencies manually but it is easier to use Conan. First, set up your Conan profile to match your compiler or let conan autodetect your settings (conan profile new vs --detect and use --profile=vs when running conan install). -
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G2
A generic 2D engine for any kind of game
This game engine uses the power of C++, OpenGL, and OpenAL to provide highly-portable, object-oriented code for programming a video game. Rather than tailoring to a specific type of game, the engine focuses on the fundamental components. It covers audio, graphics, controls, and data flow. With G2, developers have everything they need to create a 2D game without the need of expensive SDKs. -
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Gel2D Game Engine
Cross-platform 2D gaming middleware
Gel2D is a free/open-source, cross-platform, object-oriented, 2-dimensional game engine written in C++. It aims to be an all-in-one solution for commercial-quality rapid game development. -
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Humm and Strumm
A 3D, fully concurrent game engine
The Humm and Strumm Engine is a Free Software 3D game engine. Its goal is to provide a properly multithreaded, scalable engine to the FOSS community under the GPLv3 license, to encourage FOSS gaming. -
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Keen Game Engine
Flexible and easy-to-use 2d game engine
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