Top 20 NuGet async-await Packages

A helper library for the Task-Based Asynchronous Pattern (TAP).
Gear for making components.
Gear for caching stuff.
A helper library for the Task-Based Asynchronous Pattern (TAP).
Async Task Library
Utilities for working with tasks and awaitables in .NET.
An asynchronous variant of TcpClient and TcpListener for .NET Standard.
"[TestMethod] async void MyTest()" actually works correctly.
Experimental Actors framework
A helper library for using TFS ICancelableAsync with the Task-Based Asynchronous Pattern (TAP) and Visual Studio Async CTP / Visual Studio 11.
Easy-to-use exception causality chains for async/await.
A helper library for unit testing code using the Task-based Asynchronous Pattern (TAP).