Gaming experts are predicting a big future for virtual reality at E3 - the world's biggest convention for games.
Virtual reality usually involves putting on some glasses that contain video screens.
The specs give you the impression you're in a totally different world, that changes as you look around the room.
For years, virtual reality has been tipped as the next big thing in technology - but now it looks like it might finally be ready for action.
Watch Martin's report to find out more.