There was a small update when I tried to start RS and after that Steam said that the exe was missing from steamapps... and no kidding it really was. I did a backup of my DLC and 22160 folders and uninstalled the game... But now I can't even download the game from Steam anymore. When I did try to redownload the game it just says that Steam has finished downloading the game, like instanlty but nothing really happens. The install folder is completely empty. EDIT: As fearabscence said this seems to be a common problem: https://steamcommunity.com/app/221680/discussions/0/1779388024833320881/