The A* Pathfinding component contains an A* Manager, with three A* path finding engines, allowing for 3 simultaneous path searches on PC and XBOX. - By Ben

Catel is an application development platform with the focus on MVVM (WPF, SL, WP and WinRT) and MVC (ASP.NET MVC 4).

The DevPhone for Windows Phone Toolkit provide the developer community with new components, functionality, and an efficient way to help shape product development. The releases include open source code, samples & docs, plus design-time support for the Windows Phone platform.

A small validation library for .NET that uses a fluent interface and lambda expressions for building validation rules for your business objects.

MyToolkit is a set of .NET libraries containing lots of useful classes for various .NET platforms like WinRT (Universal apps), Windows Phone and WPF.

nRoute is a composite application framework for creating navigation driven applications in Silverlight, WPF, Windows Phone, and WinRT.

Silverlight Toolkit and Silverlight for Windows Phone Toolkit are a set of Microsoft components for developers.