Originally released in 1979 by Namco for arcades, Galaxian was later ported to the Colecovision in the early 1980s. As an iconic fixed shooter game, it builds on the formula established by titles like Space Invaders, challenging players to defeat waves of dive-bombing alien adversaries. Featuring bright, colorful graphics for its time, the game was known for its challenging gameplay and was a commercial success, solidifying its legacy as a classic in the space shooter genre.