Galaxian is a 1979 fixed shooter arcade game developed and published by Namco. It was licensed and distributed by Midway Games in North America. The player assumes control of the Galaxip starfighter in its mission to protect Earth from waves of aliens. Gameplay involves destroying each formation of aliens, who dive down towards the player in an attempt to hit them.

Galaxian is a fixed shooter video game. The player controls a starship called the "Galaxip", the objective being to clear each round of aliens. The enemies appear in formation towards the top of the screen, with two escort ships, labeled the "Galaxian Flagship" or "Galboss". Enemies will make a divebomb towards the bottom of the screen while shooting projectiles in an attempt to hit the player. The Galaxip can only fire a single shot on-screen, and must wait for it to hit the top before being able to fire another, due to limitations of the hardware.