A professional Ruby development tool for Visual Studio, Ruby In Steel Developer 1.5 has powerful analytical IntelliSense, the fast ‘Cylon’ debugger, syntax-sensitive editing and comprehensive development support for Ruby and Rails.
Platform: Windows;License: N/A (Source Code Not Provided)
References: https://www.sapphiresteel.com/Products/Ruby-In-Steel/Ruby-In-Steel-Developer-Overview