Virtual reality games are lot of fun, but you can get more out of them with a motion simulator. The Feel Three simulator is designed to give you a more immersive experience. It has a modular design, so you can add panels, motors, and other components to race and fly. The system works with over 80 games and supports 100-degree pitch/roll and 5 full rotations in yaw.
This is a half sphere on a base that contains the wheels and motors to move you in 3 degrees of rotation. With tactile transducers, you feel vibrations for more immersive gaming. Pretty neat if you ask us. You can find this project on Kickstarter.