Scripting platform, modding framework and VR support for RE Engine
Unity / XNA game patcher and plugin framework
A framework to build Pokémon RPG games
Phaser is a free and fast 2D game framework for making HTML5 games
Multiplayer Framework for Node.js
MAME is a multi-purpose emulation framework
Godot game template and component-based framework
3D game engine/framework in C, with Luajit and Python bindings now
UI Automation Framework for Games and Apps
A lightweight game server framework implemented with Actor Model
Cross-platform runtime for cloud, mobile, desktop, and IoT apps
A fast and reliable entity component system (ECS) and much more
A free (libre) open source, mobile OS for Ethereum
A grid based movement engine compatible with Phaser3
Telegram Bot API for Java
2D GPU-accelerated framework for ActionScript developers
LÖVE is an awesome 2D game framework for Lua
Access serial ports with JavaScript. Linux, OSX and Windows
An asynchronous event driven PHP socket framework
Open source and cross-platform machine learning framework for .NET
Arianne is an engine to develop multiplayer online games like Stendhal
the java game and entertainment runtime
VR Adrix Java Works - Paged Lists - Action-Entity Model ...