I believe you can add games into your steam client that aren't purchased from Steam. Just select add non-steam game, then the game you like. From there I believe you can use the steam in-game browser using the hotkey you have.
I believe you can add games into your steam client that aren't purchased from Steam. Just select add non-steam game, then the game you like. From there I believe you can use the steam in-game browser using the hotkey you have.