finally was able to get MonoDevelop together with MonoGame working on my Linux machine.
So right now I'm using MonoDevelop 220.127.116.118-1 and MonGame SDK 3.6.
I have a Library Project from my windows machine. Wich doesn't want to open on Linux now. That's strange. I have another project wich is loading just fine. Maybe because its somewhat special and because i created it in Visual Studio.
Okay, i thought, I just make a new project and put my files in there. But, when I try to use the project template for libraries
The project could not be created
Unkown solution item type: PortableDotNet
I am also missing some project templates. What about Android?