diff --git a/dotnet-developer-projects.md b/dotnet-developer-projects.md
index c4510f9..36e7aec 100644
--- a/dotnet-developer-projects.md
+++ b/dotnet-developer-projects.md
@@ -8,7 +8,8 @@ Please sort projects alphabetically and provide a one-line description. GitHub/C
  * [.NET Core](https://github.com/dotnet/corefx) - Core .NET Framework
  * [Mono Project](https://github.com/mono/) - Cross-platform implementation of .NET Framework.
  * [Cosmos](http://cosmos.codeplex.com/) - C# Open Source Managed Operating System, an operating system "construction kit".
- 
+ * [Fling OS](http://www.flingos.co.uk/) - C# Operating System designed for people to learn low-level development from.
+
 * Platforms
  * [Castle Project](https://github.com/castleproject) - Umbrella project for ActiveRecord, DynamicProxy, MonoRail, Windsor
  * [Catel](http://catelproject.com/) - Application platform with IoC, logging, reflection and much more that serves as a base for applications that must be ready for future growth.