Phaser is a free and fast 2D game framework for making HTML5 games
An MVVM & Databinding framework that can use C# and Lua
Powerful, fast and developer-friendly extension framework
Unity / XNA game patcher and plugin framework
3D game engine/framework in C, with Luajit and Python bindings now
A lightweight game server framework implemented with Actor Model
Godot game template and component-based framework
Framework to facilitate communication in the Unity game engine
Extremely fast enterprise server framework, can be used in RPC
A framework to build Pokémon RPG games
Multiplayer Framework for Node.js
MAME is a multi-purpose emulation framework
Simple and powerful Unity3d game workflow!
Drogon: A C++14/17/20 based HTTP web application framework
An efficient, extensible and easy-to-use RPC framework
Phaser CE is a fun, free and fast 2D game framework
UI Automation Framework for Games and Apps
the java game and entertainment runtime
JavaScript framework to build game engines, games, emulators and apps
LÖVE is an awesome 2D game framework for Lua
A web-based IDE for HTML5 game development. Powered by Phaser
Cerberus Content Management System
Flexible, extensible, and scalable video game matchmaking