I don't suppose anyone could give a sure fire way to start a Steam game without the Steam client, such that I could create desktop or ideally. It bogs down my PC when it has to start Steam whenever i run a game and i don't always leave it running. Is there a way to just launch the. Does anybody know how I can launch games which I bought on steam without having it turned on?Seems like something is wrong with steam. Try adjusting the terms of your search, you can search by game titles, publishers, and developers. Start a New Discussion. All games made for Steam require that the Steam client is running before the game will start. Quoting Wintersong, reply You're free to use OSX or Linux for you computer just sicher wetten gewinnen your free to use only non-Steam games. So how can you start a Steam game without Steam Please Log In to post.