Top 20 NuGet winrt Packages

A simple Date Picker for use in WinRT XAML apps
The WP-Fx.UI project contains some UI/MVVM related features that are missing in the current versions of the WP7/8 and WinRT frameworks. Currently this package only contains a RelayCommand and CommandManager implementation for all platforms.
A Metro Character Progress Control The Progress Control could be used in following platforms: Windows 8 (WinRT) Windows Phone 8 (WP8) Silverlight 5 (SL5) WPF (WPF4.5)
DonationButton and a few public methods
Windows 8.1 components: RandomColorGenerator, LineCounter, SilentTextBox, TextBlox
StorageHelper is a helper class for Windows Phone and Windows apps to easily save, load and delete data from storage.
ReviewNotifier is a helper class for Windows Phone and Windows 8 apps to easily ask users to rate and review your app after a number of launches.
BugFreak for WinRT. Easily track your applications errors. More info at https://bugfreak.co
SpiritMVVM is a Model-View-ViewModel library, focused on richness of feature-set and cross-platform compatibility, using the Portable Class Library. It was designed from the beginning to incorporate many modern features and "niceties" found scattered in other MVVM libraries, but only truly combined...
This is a Windows Runtime component that implements a SQL Server provider for Windows Store and Windows Phone apps.
This package is the WinRT wrapper for the SQLite library available for Windows Store applications, Windows Phone 8 and Windiows Phone 8.1 (WinRT and Silverlight).
Control your LEGO Mindstorms EV3 kit! With this API, you can connect to and control your LEGO EV3 brick over Bluetooth, WiFi, or USB. This project provides libraries that are usable from the Windows desktop, Windows Phone 8, and WinRT (via .NET, WinJS and C++), along with full source code.
An extension to the LightInject service container that allows properties and constructor parameters to be annotated with the InjectAttribute class.
Adds mocking capabilities to the LightInject service container.
Package gives you few handy helper methods and couple controls such as signature control and nav bar(coming soon...)
Strongly typed helper for toast notifications in Windows Store apps
A collection of useful tools for developing Windows and Windows Phone Apps using C# and XAML. This is a Portable Class Library that targets Windows 8.1 and Windows Phone 8.1. If you need Windows 10 UWP compatibility, try "VToolkit UWP" instead of "VToolkit".
This is a redistribution of the "SQLite for Windows Runtime (Windows 8.1) Extension SDK" packaged NuGet-style. This package is compatible with the Windows 8.1 platform.
Citrus.Interactions - Action / Behavior library for universal Windows apps
Action Message Format for Windows Runtime is the reader and writer of AMF0 and AMF3.