Unity - The multiplatform game creation tools for everyone.
Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
Godot Engine - Feature-packed 2D and 3D open source game engine.
ASP.NET - ASP.NET is a free web framework for building great Web sites and Web applications using HTML, CSS and JavaScript.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Scotty - Scotty is a Haskell framework inspired by Ruby's Sinatra.