Games & game dev

Naev has moved to codeberg! This is just a mirror.

openFrameworks is a community-developed cross platform toolkit for creative coding in C++.

The official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.

Unity3D Client And C# Server Framework

Written in C++ and using SDL, The Powder Toy is a desktop version of the classic 'falling sand' physics sandbox, it simulates air pressure and velocity as well as heat.

Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.

Command the forces of The Project in a battle to rebuild the world after mankind has been nearly destroyed by nuclear missiles. A 100% free and open source real-time strategy game for Windows, macOS, Linux, BSD+

Flexible level editor

Terasology - open source voxel world

Simple and Fast Multimedia Library

One framework for creating powerful cross-platform games.

A game of lonely space adventure

a modern & lightweight HTML5 game engine

Basketball GM (and other ZenGM games) are single-player sports management simulation games, made entirely in client-side JavaScript.

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

Luanti (formerly Minetest) is an open source voxel game-creation platform with easy modding and game creation

Picasso is a high quality 2D vector graphic rendering library. It support path , matrix , gradient , pattern , image and truetype font.

The /tg/station branch of SS13.

Unit testing and build system for C projects

♞ lichess.org: the forever free, adless and open source chess server ♞

A comprehensive, feature-rich, open source, and portable, collection of Solitaire games.

Cross-platform, graphics API agnostic, "Bring Your Own Engine/Framework" style rendering library.

XMage - Magic Another Game Engine

Nazara Engine is a cross-platform framework aimed at (but not limited to) real-time applications requiring audio, 2D and 3D real-time rendering, network and more.

Defold is a completely free to use game engine for development of desktop, mobile and web games.

The Ren'Py Visual Novel Engine

A complete and cross-platform game engine designed for flexibility, performance and fast iteration.

Desktop/Android/HTML5/iOS Java game development framework

The main repository for the development of the evolution game Thrive.

Cataclysm - Dark Days Ahead. A turn-based survival game set in a post-apocalyptic world.

Multi-player spaceship bridge simulator game. Captain your starship through adventures with your friends. See https://smcameron.github.io/space-nerds-in-space

Open Fodder: An open source port of Cannon Fodder

Descent-Rebirth and Descent II-Rebirth

🎮 Your friendly TypeScript 2D game engine for the web 🗡️

One Must Fall 2097 Remake

The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.

Terasology Launcher is the official launcher for the open source game Terasology.

p5.js is a client-side JS platform that empowers artists, designers, students, and anyone to learn to code and express themselves creatively on the web. It is based on the core principles of Processing. Looking for p5.js 2.0? http://beta.p5js.org

Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.

An open source, turn-based strategy game with a high fantasy theme.

Open Source Clones of Popular Games

A dead simple 2D game engine for Go

A foundational Haxe framework for cross-platform development

The official repository for ROOT: analyzing, storing and visualizing big data, scientifically

Babylon.js is a powerful, beautiful, simple, and open game and rendering engine packed into a friendly JavaScript framework.

rAthena is an open-source cross-platform MMORPG server.

:bar_chart: A D3-based reusable chart library

The modern way to play StarCraft 1.

Open source RTS game running on the Spring/Recoil engine

The command-line tool for quick, simple deployment and management of Linux dedicated game servers.

Open source clone of Theme Hospital

iOS & tvOS multi-emulator frontend, supporting various Atari, Bandai, NEC, Nintendo, Sega, SNK and Sony console systems… Get Started: https://wiki.provenance-emu.com |

Iter Vehemens ad Necem - a continuation of the graphical roguelike by members of http://attnam.com

A simple and easy-to-use library to enjoy videogames programming

An open source game engine for C++23 :dog: :video_game:

Clone of the Age of Empires II engine 🚀

The owls are not what they seem.

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

SuperTux source code

MegaGlest real-time strategy game engine (cross-platform, 3-d)

Freeminer is an open source sandbox game inspired by Minecraft.

⚔️ A cross-platform, open source, and super fast MUD client with scripting in Lua

The classic, refined DOOM source port. For Windows PC.

Godot Engine – Multi-platform 2D and 3D game engine

RenderDoc is a stand-alone graphics debugging tool.

An open source re-implementation of RollerCoaster Tycoon 2 🎢

Open-source engine for Heroes of Might and Magic III

GPAC Ultramedia OSS for Video Streaming & Next-Gen Multimedia Transcoding, Packaging & Delivery

Powerful web graphics runtime built on WebGL, WebGPU, WebXR and glTF

Open source bridge simulator. Build with the SeriousProton engine.

The motion graphics toolbelt for the web

🎮 Open-source, cross-platform 2D/3D/multiplayer game engine designed for everyone.

Aardvark.Base is the foundation of the open-source Aardvark Platform for visual computing, real-time graphics, and visualization.

:video_game: :pencil: A list of Game Development resources to make magic happen.

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

rhythm is just a *click* away!

Shattered Pixel Dungeon is an open-source traditional roguelike dungeon crawler with randomized levels and enemies, and hundreds of items to collect and use. It's based on the source code of Pixel Dungeon, by Watabou.

Dungeon Keeper II remake

DDraceNetwork, a free cooperative platformer game

Animated sprite editor & pixel art tool (Windows, macOS, Linux)

X-Ray Engine 1.5 expansion. Original version was used in S.T.A.L.K.E.R.: Clear Sky.

Mirror of https://gitlab.com/xonotic/xonotic - Xonotic (superproject containing build scripts and tools to download other repositories and assets)

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! ;)

Virtual Tabletop for playing roleplaying games with remote players or face to face.

Paradise Station's GitHub main repository.

Traditional roguelike game with pixel-art graphics and simple interface - Remixed Pixel Dungeon

Main code and data development for pcgen program release

Konva.js is an HTML5 Canvas JavaScript framework for interactive graphics, design editors, whiteboards, and diagrams. Scene graph with events, drag and drop, transforms, animations, and export.

Robust multiplayer game engine, used by Space Station 14

A brief computer graphics / rendering course

GD Graphics Library

ZQuest Classic is a game engine for creating games similar to the original NES Zelda

The Daemon game engine is a multiplatform 3D game engine tailored for arena first-person shooters, delivering 25 years of development above id Tech 3. It is historically based on ioquake3, Wolf:ET and XreaL adding new features, bringing modernization and maintenance.

A high-performance Python port of libtcod. Includes the libtcodpy module for backwards compatibility with older projects.

Space exploration, trading, and combat game.

Java / JavaFX / Kotlin Game Library (Engine)

Source code repository of the FreeOrion project.

The DirectX Tool Kit (aka DirectXTK) is a collection of helper classes for writing DirectX 11.x code in C++

A curated list of free/libre plugins, scripts and add-ons for Godot

C# modding swiss army knife, powered by cecil.