There was a vector-based cabinet predating Space Invaders: Cinematronics' Space Wars (1977), which used custom hardware to re-implement the original PDP-1 Space

There was a vector-based cabinet predating Space Invaders: Cinematronics' Space Wars (1977), which used custom hardware to re-implement the original PDP-1 Spacewar! game. It was strictly a two-player game; you couldn't play against the computer. Cinematronics would use the platform for later games like Star Castle and Tail Gunner, also vector-based.