Allows steam games to launch outside of steam [Feature Request]
Since some steam games are DRM free it would be nice to launch those games through Gnome Games without steam also being launched (or at least being given the option). This would make Gnome Games a little bit more useful since now we'll have a nice interface to launch GOG, Steam and other games without connecting to steam servers unnecessarily for those who only want to use steam to manage updates/downloads without having to give away other information when playing.