@Marcel Offermans Maybe Others call it different, but i would call it a Bug. It is the Fact that when i run the Steam Dedicated Server, what for my Understanding should be a from the main Game independend Task, rFactor 2 is detected as "running", that it can not be started in Steam anymore. It would be great if such Things could be fixed quickly, because they make the Things unneccessary complicated and are against every intuitive Usage. Thank you EDIT I better had added more Information, as the below Posts prove. That Effect happens, when rFactor 2 and the Steam dedicated Server are installed on the same Machine and when Steam is running and you start the Dedi before you start rFactor 2.