I went on the Sims website and registered my game and it worked just fine, and it showed up in Origins. If I go into Windows Task Manager it says that the game is running in the background, but there is no way to open it. If I try to launch it again from Steam or the Desktop icon it comes up with an error message saying that the game is already running.
I just downloaded this from Steam, it installed fine, I go to launch it, and it has the regular 'first time setup' window pop up, but then it closes and nothing happens.