Torg (All hail King Torg!) is a game formerly owned by West End Games, now under Ullises Spiele of The Dark Eye fame. It's about cross-dimensional action adventures. Think Sliders, but with more horror. Recently came out with a 2nd Iteration called Torg Eternity, to mixed response
It's noteable for having dimensions actually affect you, as using magic/guns/armor beyond the Cosm's axiom may cause disconnect, making your current self start to fade from reality until you reconnect. Fail to reconnect too many times and you transform into a person from that Cosm.
Has absolutely nothing to do with the webcomic Sluggy Freelance, which has a character in it called Torg (All hail King Torg!).