Battlezone is an arcade game from Atari released in November 1980, designed by Ed Rotberg (General Design), Owen Rubin (Exploding Volcano), and Roger Hector (Tank and enemy design).
A version called The Bradley Trainer (also known as Army Battlezone or Military Battlezone) was also designed for use by the U.S. Army as targeting training for gunners on the Bradley Fighting Vehicle. Approaching Atari in December 1980, some developers within Atari refused to work on the project because of its association with the Army, most notably original Battlezone programmer Ed Rotberg. Rotberg only came on board after he was promised by management that he would never be asked to do anything with the military in the future.
Because of its use of first-person pseudo 3D graphics combined with an actual “viewing goggle” that the player puts his face into, Battlezone is widely considered the first virtual reality arcade game. Likewise, The Bradley Trainer is considered the first VR training device used by the U.S. Army.