Phaser is a free and fast 2D game framework for making HTML5 games
Unity / XNA game patcher and plugin framework
Pterodactyl® is a free, open-source game server management panel
A lightweight game server framework implemented with Actor Model
Godot game template and component-based framework
3D game engine/framework in C, with Luajit and Python bindings now
BizHawk is a multi-system emulator written in C#
A lightweight online game framework
Extremely fast enterprise server framework, can be used in RPC
MAME is a multi-purpose emulation framework
egui: an easy-to-use immediate mode GUI in Rust
Native Android app for Habitica
Simple and powerful Unity3d game workflow!
An MVVM & Databinding framework that can use C# and Lua
A fast and reliable entity component system (ECS) and much more
A framework to build Pokémon RPG games
Framework to facilitate communication in the Unity game engine
Drogon: A C++14/17/20 based HTTP web application framework
Multiplayer Framework for Node.js
UI Automation Framework for Games and Apps
An asynchronous event driven PHP socket framework
Better Stack JavaScript client
Telegram Bot API for NodeJS
Phaser CE is a fun, free and fast 2D game framework
A beautiful, easy-to-use and ad-free comic and game client