Top 20 NuGet actors Packages

Sharded actors with managed lifecycle for Akka.NET cluster. Used to distribute state in a fault-tolerant, consistent fashion over an Akka.NET cluster.
Akka.NET Persistence ADO.NET middleware
TestKit for writing tests for Akka.NET using xUnit.
Replicated data using CRDT structures
Distributed coordination support for Akka.NET
Canonical actor model implementation for .NET with local + distributed actors in C# and F#.
Remoting support for Akka.NET. Allows actors to communicate over the network.
Persistence for Akka.NET actors. Allows actors to persist and recover their state in a database-agnostic fashion.
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.
Dependency injection support for Akka.NET [DEPRECATED - replaced by Akka.DependencyInjection]
Clustering support for Akka.NET actors. Used to build highly-available, distributed applications.
Streaming support for Akka.NET. Introduces a LINQ-like interface for writing asynchronous, back-pressure-aware streams built on top of Akka.NET actors.
Hyperion serializer for Akka.NET
Microsoft Orleans library for hosting a silo in a testing project.
Distributed publish/subscribe, client and singleton support for Akka.NET cluster
Microsoft Windows Performance Counters implementation of Orleans Telemetry API.
Microsoft Orleans clustering provider backed by Azure Table Storage
Microsoft Orleans reminders provider backed by ADO.NET
Microsoft Orleans persistence providers backed by ADO.NET
Microsoft Linux implementation of Orleans Telemetry API.