Castle Game Engine - An open-source 3D/2D game engine for ObjectPascal.
Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
Cyberix3D - Free online 3D Game Maker. Make your own 3D games online!
ASP.NET - ASP.NET is a free web framework for building great Web sites and Web applications using HTML, CSS and JavaScript.
Open 3D Engine - Open 3D Engine is an open-source 3D game development engine in real-time.
Scotty - Scotty is a Haskell framework inspired by Ruby's Sinatra.