Orbitron1981

A single screen crosshair shooter written by David Lubar.

A shoot 'em up created by Dan Thompson and published by Sirius Software.

In this Galaga clone hostile space ships attack your moon base in endless waves and try to steal your provisions. Your goal is to prevent just that.

Asteroids is an arcade space shooter released in November 1979. The player controls a spaceship in an asteroid field which is periodically traversed by flying saucers. The objective of the game is to destroy both, asteroids and saucers. The triangular ship can rotate left and right, fire shots straight forward, and thrust forward. Once the ship begins moving in a direction, it will continue in that direction for a time without player intervention unless the player applies thrust in a different direction. The ship eventually comes to a stop when not thrusting. The player can also send the ship into hyperspace, causing it to disappear and reappear in a random location on the screen, at the risk of self-destructing or appearing on top of an asteroid.

A Tempest inspired shoot'em up written by David Arthur Van Brink and published by Datamost for the Apple II.

The player controls a space ship which is trapped in an area consisting of seven tunnels which are connected by a vertical shaft. Enemies are attacking the player from left and right and it is the objective of the player to destroy as many attackers as possible using the shaft. You can't, however, hover at one spot for too long since an invincible enemy will appear, forcing the player to change positions eventually.

A shoot'em up taking place in the circulatory system of a human body where the player has to destroy the infectious gamma goblins. Written by Tony and Benny Ngo and published by Sirius Software for the Apple II computers.

Your assault ship was specially designed to destroy Hyperion Military Bases. Destroy as many as possible. You can fire missiles in the gaps in the Force Field or from inside the Force Field. If you are able to sneak inside, you must quickly destroy the bace before the Force Field closes on your ship. This is no easy task!