I'll go upstairs and see what games still work in offline mode. I only have a dozen or so origin games though, and most of them are fps games.
I was able to get all the games in my list to play.
BF3, Crysis 2, and Dead Space 2 needed to be re-activated for some reason, but after that, I went back offline and turned off the internet and they fired up. BF3 went straight into Single Player.