Pterodactyl® is a free, open-source game server management panel
A lightweight game server framework implemented with Actor Model
egui: an easy-to-use immediate mode GUI in Rust
Better Stack JavaScript client
UI Automation Framework for Games and Apps
Drogon: A C++14/17/20 based HTTP web application framework
JavaScript framework to build game engines, games, emulators and apps
A web-based IDE for HTML5 game development. Powered by Phaser
Cerberus Content Management System
Open-source full-stack web development framework built on top of React
Cross platform SDK
Open-source, cross-platform, game-development tools
Build Cross-platform Applications
Asphyre is a cross-platform framework for Delphi and FreePascal.
3D .NET engine for Windows, Linux, Mac
universal multi-platform light-weigth extensible scripting framework
Make robots for MediaWiki-powered sites!
Cross platform 2D game creation framework with Python bindings
Powerful html5 & javascript library for creating applications & games.
Formerly CraveJs, it's for creating JavaScript applications and games.