MonoGame - Write Once, Play Everywhere

An Open Source, implementation of the Microsoft XNA 4 Framework. Our goal is to allow XNA developers to target iOS, Android, Windows 8, Mac, Linux and more!

Babylon.js - Babylon.js: a complete JavaScript framework for building 3D games with HTML 5 and WebGL

•    TypeScript

Babylon.js is a JavaScript 3D engine based on webgl.

panda3d - Powerful, mature open-source cross-platform game engine for Python and C++, developed by Disney and CMU

•    C++

Panda3D is a game engine, a framework for 3D rendering and game development for Python and C++ program. It featues include Exposes Full Power of Graphics API, Powerful interface between shaders and engine, Support for tessellation and compute shaders, Fullscreen filters such as Bloom, Cartoon Inking, Volumetric Lightning, Blur/Sharpen and Ambient Occlusion, as well as the ability to use your own, Get models from your 3d modeller to Panda3D easily, Several options for adding sounds, physics simulation to your game.

MonoGame - One framework for creating powerful cross-platform games.

•    CSharp

One framework for creating powerful cross-platform games. The spiritual successor to XNA with 1000's of titles shipped across desktop, mobile, and console platforms. MonoGame is a fully managed .NET open source game framework without any black boxes. Create, develop and distribute your games your way. It is an Open Source implementation of the Microsoft XNA 4 Framework. Our goal is to allow XNA developers on Xbox 360, Windows & Windows Phone to port their games to any platform

Cocos2d - Cross-platform, game-development tools used by millions of developers all over the world

•    C

Cocos2d-x is a suite of open-source, cross-platform, game-development tools used by millions of developers all over the world. Cocos2d-x allows developers to exploit their existing C++, Lua and Javascript knowledge for cross-platform deployment into iOS, Android, Windows Phone, Mac OS X, Windows Desktop and Linux, saving time, effort and cost. Cocos2d-x is fast, easy to use and loaded with powerful features.

awesome-unity - A curated list of awesome Unity assets, resources, and more.

A categorized community-driven collection of high-quality awesome Unity assets, projects, and resources. Free assets and resources are prioritized over paid when possible.Suggestions and contributions are always welcome! Make sure to read the contribution guidelines for more information before submitting a pull request.

duality - a 2D Game Development Framework

•    CSharp

Duality is a plugin based 2D game development framework based on C# and OpenTK. To get a quick overview, please visit the project page. For documentation, take a look at the Wiki.If you have questions or just want to say Hi, feel free to join us in the forum or our chat. Also, feedback is always welcome! Bugs and feature requests that do not require further discussion, however, should be filed in the issue tracking system, directly here on github.

boardgame.io - State management and more for turn based games.

•    Javascript

The goal of this framework is to allow a game author to essentially translate the rules of a game into a series of simple functions that describe how the game state changes when a particular move is made, and the framework takes care of the rest. You will not need to write any networking or backend code.See changelog.

game-programming-patterns - Source repo for the book

•    HTML

Note: Now that the book is done, I'm not actively working on it. There are only so many hours in the day, and I have other projects that need my love, including a new book. This means I'm not responding to issues and pull requests here. However, I do intend to circle back and do a second edition at some point, so please do continue to file bugs.

phaser - 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

•    Javascript

Phaser is a fast, free, and fun open source HTML5 game framework that offers WebGL and Canvas rendering across desktop and mobile web browsers. Games can be compiled to iOS, Android and native apps by using 3rd party tools. You can use JavaScript or TypeScript for development. Phaser is available in two versions: Phaser 3 and Phaser CE - The Community Edition. Phaser CE is a community-lead continuation of the Phaser 2 codebase and is hosted on a separate repo. Phaser 3 is the next generation of Phaser.

Entitas-CSharp - Entitas is a super fast Entity Component System (ECS) Framework specifically made for C# and Unity

•    CSharp

Entitas is a super fast Entity Component System Framework (ECS) specifically made for C# and Unity. Internal caching and blazing fast component access makes it second to none. Several design decisions have been made to work optimal in a garbage collected environment and to go easy on the garbage collector. Entitas comes with an optional code generator which radically reduces the amount of code you have to write and makes your code read like well written prose. The optional code generator lets you write code that is super fast, safe and literally screams its intent.

clumsy-bird - :bird: :video_game: A MelonJS port of the famous Flappy Bird Game

•    Javascript

Clumsy Bird - A MelonJS port of the famous Flappy Bird game

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

A curated list of game development resources to make magic happen. Audio editors, sounds collections and more.

JustWeEngine - An easy open source Android Native Game FrameWork.

•    Java

An easy open source Android Native Game FrameWork. Import Engine's module as Library.

planck.js - 2D JavaScript Physics Engine

•    Javascript

Check out Car example on JS Bin to try it in practice. Also see example directory for more testbed usage examples. To receive updates about changes and progress follow @piqnt on twitter.

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

A curated list of free/libre games, plugins, add-ons and scripts for Godot. Games that use Godot.

pyxel - A retro game development environment in Python

•    Python

Pyxel is a retro game development environment in 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.

GameNetworkingSockets - Reliable & unreliable messages over UDP

•    C++

The main interface class is named SteamNetworkingSockets, and many files have "steam" in their name. But Steam is not needed. If you don't make games or aren't on Steam, feel free to use this code for whatever purpose you want. The reason for "Steam" in the names is that this provides a subset of the functionality of the API with the same name in the Steamworks SDK. Our main reason for releasing this code is so that developers won't have any hesitation coding to the API in the Steamworks SDK. On Steam, you will link against the Steamworks version, and you can get the additional features there (access to the relay network). And on other platforms, you can use this version, which has the same names for everything, the same semantics, the same behavioural quirks. We want you to take maximum advantage of the features in the Steamworks version, and that won't happen if the Steam code is a weird "wart" that's hidden behind #ifdef STEAM.

p1xt-guides - Programming curricula

Web development, software engineering, games programming, mobile app development ... Resources for learners who want to dive deeper on their journey to becoming web developers / software engineers. There are multiple guides, the first outlines the bare minimum to be successful as an entry-level junior web developer, two dive much more deeply to prepare you for "beyond junior", and one that focuses on game development.

Carp - A statically typed lisp, without a GC, for real-time applications.

•    Haskell

Update (June 12, 2018): We're currently working towards version 0.3.0 of the language. The goal of this version is to be a stable but somewhat limited version of the language (lacking lambdas and union types). Carp is a small programming language designed to work well for interactive and performance sensitive use cases like games, sound synthesis and visualizations.