I think it's in your name bro! Sim, or simulation. We have had simulators around in some form or other since, longer than I can remember 50ies maybe? Now some were/are made to take up whole rooms and cost hundreds of thousands if not more dollars, and are used by NASA, the Air Force, and Disney (and other theme parks), BUT others are more affordable and have been seen at schools and arcades, and even at home. I think I've mentioned Microsoft Flight Simulator before! So I would say Simulation was the predecessor to VR.
