Phaser is a free and fast 2D game framework for making HTML5 games
Unity / XNA game patcher and plugin framework
A web-based IDE for HTML5 game development. Powered by Phaser
Pterodactyl® is a free, open-source game server management panel
Godot game template and component-based framework
3D game engine/framework in C, with Luajit and Python bindings now
MAME is a multi-purpose emulation framework
BizHawk is a multi-system emulator written in C#
A lightweight game server framework implemented with Actor Model
A lightweight online game framework
A fast and reliable entity component system (ECS) and much more
Native Android app for Habitica
Simple and powerful Unity3d game workflow!
LÖVE is an awesome 2D game framework for Lua
egui: an easy-to-use immediate mode GUI in Rust
Multiplayer Framework for Node.js
A framework to build Pokémon RPG games
Framework to facilitate communication in the Unity game engine
A beautiful, easy-to-use and ad-free comic and game client
An MVVM & Databinding framework that can use C# and Lua
Powerful, fast and developer-friendly extension framework
Phaser CE is a fun, free and fast 2D game framework
UI Automation Framework for Games and Apps
An asynchronous event driven PHP socket framework
An efficient, extensible and easy-to-use RPC framework