The Microsoft Build Engine (MSBuild) build platform for .NET and VS
OmniSharp server (HTTP, STDIO) based on Roslyn workspaces
C# support for Visual Studio Code (powered by OmniSharp)
PerfView is a CPU and memory performance-analysis tool
The open-source C/C++ package manager
Roslyn-based LSP language server for C#
AWS Encryption SDK for Dafny
Cross platform code coverage for .NET
An open source re-implementation of RollerCoaster Tycoon 2
Vulnerability Patterns Detector for C# and VB.NET
App to automatically launch the correct version of Visual Studio
Visual Studio .vc[x]proj to CMakeLists.txt (make, Ninja ...) enabler
Tool for building and deploying Microsoft.NET applications.
Control everything: Visual Studio, MSBuild Tools, CI, and more ...
An example project to demonstrate continuous integration, in .NET.
NS-ORG IDE for DOT NET Programming
A concurrency and load testing tool for .NET applications