Plot: Astro Fighter is a space-themed shoot 'em up arcade game released in 1979. It was developed and distributed by Data East in Japan, and was distributed in North America by Sega/Gremlin. Wikipedia
Plot: Eliminator is a multi-directional shooter space combat game, created and released by Sega/Gremlin in 1981. Similar to the monochrome Star Castle, Eliminator uses color vector graphics and allows both cooperative and competitive multiplayer gameplay. It is the only four-player vector game ever made....
Plot: Blaster is a first-person video game developed by Eugene Jarvis and Larry DeMar and released in arcades by Williams Electronics in 1983. A vague sequel to Robotron: 2084, the game is a shoot 'em up set in outer space. Wikipedia
Plot: Tac/Scan is a 1982 space combat shooter video game originally released as an arcade game, and later ported to the Atari 2600. It was also included as an unlockable game in the PlayStation 2 version of Sega Genesis Collection. It was developed by Sega Electronics and published by Sega. Wikipedia
Plot: Zektor is a multidirectional shooter arcade game created by Sega Electronics and released in 1982. It challenges the player to pilot a space ship in a quest to recapture eight different cities that have been captured by alien robots. The robots' dialogue is spoken through speech synthesis. Wikipedia...
Plot: Astro Invader, originally released in Japan as Kamikaze lit. Divine Wind, is an arcade fixed shooter developed by Konami, and the first arcade game published by Stern Electronics. Astro Invader was ported to the Emerson Arcadia 2001 in 1982. Wikipedia
Plot: Gorf is an arcade game released in 1981 by Midway Mfg., whose name was advertised as an acronym for Galactic Orbiting Robot Force. It is a fixed shooter with five distinct levels, the first of which is based on Space Invaders and another on Galaxian. Wikipedia
Plot: Amidar is a video game developed by Konami and released in arcades in 1981 by Stern. The format is similar to that of Pac-Man: the player moves around a fixed rectilinear lattice, attempting to visit each location on the board while avoiding the enemies. Wikipedia
Plot: Eliminator is a multi-directional shooter space combat game, created and released by Sega/Gremlin in 1981. Similar to the monochrome Star Castle, Eliminator uses color vector graphics and allows both cooperative and competitive multiplayer gameplay. It is the only four-player vector game ever made....
Plot: Megamania is an Atari 2600 game by Steve Cartwright and published by Activision in 1982. Versions were released for the Atari 5200 and Atari 8-bit family in 1983. Megamania is similar to Sega's 1981 arcade title Astro Blaster. Wikipedia