Is it possible to add this to steam via the "Add non-steam" game option, i have tried but due to the launcher being a separate exe it doesn't change over to the main games .exe.
Open steam --> choose Games --> Add a Non-steam game to my library --> press button (down) Browse --> select Archerage launcher (that is Launcher.exe) --> press button Add selected programs.
I've done that but i want the steam overlay in the game itself, once launcher.exe boots up the archeage.exe it doesn't switch over, nor does it say i'm playing archeage.
It's a Non-Steam game and that's why, unfortunately, it's not supported by client. Will take a look into it and, in case solution is found, will let you know.