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
3D game engine/framework in C, with Luajit and Python bindings now
MAME is a multi-purpose emulation framework
LÖVE is an awesome 2D game framework for Lua
Godot game template and component-based framework
A lightweight game server framework implemented with Actor Model
Cross-platform runtime for cloud, mobile, desktop, and IoT apps
A grid based movement engine compatible with Phaser3
A lightweight online game framework
A fast and reliable entity component system (ECS) and much more
Telegram Bot API for Java
Multiplayer Framework for Node.js
UI Automation Framework for Games and Apps
Open source and cross-platform machine learning framework for .NET
A free (libre) open source, mobile OS for Ethereum
An asynchronous event driven PHP socket framework
Access serial ports with JavaScript. Linux, OSX and Windows
Flexible, extensible, and scalable video game matchmaking
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 ...