A reusable DNS resolver for .NET.
SQL query builder, written in c#, helps you build complex queries easily, supports SqlServer, MySql, PostgreSql and Firebird
FlashAirDownloader 2nd Edition
A simple, fast and powerful micro object-relational mapper (O/RM) for .NET
WhiteCoreSim - Software to create your own virtual world
LibOpenMetaverse is a collection of .NET libraries written in c# for interacting with 3d virtual world simulators. The core library implements the protocol, networking and client functionality.
Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin). / msgpack.org[C#]
Reactive Extensions for Unity
gRPC based HTTP/2 RPC Streaming Framework for .NET, .NET Core and Unity.