Top 20 NuGet actor Packages

Sharded actors with managed lifecycle for Akka.NET cluster
Replicated data using CRDT structures
Akka.NET is a port of the popular Java/Scala framework Akka to .NET
ServiceFabric.Mocks contains many mocks and helper classes to facilitate and simplify unit testing of your Service Fabric Actor and Service projects.
Remote actor support for Akka.NET
Dependency injection support for Akka.NET
Persistence actor support for Akka.NET
You need a Akka.TestKit.* package! Add the one appropriate for the test framework you use instead. For example: Akka.TestKit.Xunit or Akka.TestKit.VsTest. This package only contains base functionality for writing tests for the Akka.NET framework.
Cluster support for Akka.NET
Hyperion serializer for Akka.NET
Distributed publish/subscribe, client and singleton support for Akka.NET cluster
TestKit for writing tests for Akka.NET using xUnit.
Reactive stream support for Akka.NET
Akka.NET Persistence ADO.NET middleware
Akka Persistence journal and snapshot store backed by SQL Server database.
Pluggable monitoring system extension for Akka.NET actor systems
NLog logging adapter for Akka.NET
Functional API for MSR Orleans. Server-side library.
AutoFac Dependency Injection (DI) support for Akka.NET
F# api for Orleankka. Server-side library.