Alpha Shield1983

Defend your bases by shooting the oncoming alien swarms.

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.

Front Line is a vertically scrolling action game. Your mission is to infiltrate enemy territory and destroy their fortress. To reach the fortress, you will have to make your way through varied and dangerous terrain. Jungles, deserts, brush, and rocks all slow your progress, plus each area has numerous enemy fighters and tanks trying to stop you. To help get past these obstacles, you are armed with a machine gun and grenades; at some points in the game you may even come across an abandoned tank which you can control to increase your odds of survival. When you reach the end of the level and successfully destroy the fortress, the game will repeat at a higher level of difficulty. Gameplay is for one or two players, and four different skill levels are available.

Tron is a coin-operated arcade video game manufactured and distributed by Bally Midway in 1982. It is based on the Walt Disney Productions motion picture Tron released in the same year. The game consists of four subgames inspired by the events of the science fiction film. It features some characters and equipment seen in the film, e.g. the Light Cycles, battle tanks, the Input/Output Tower.

Released in 1988 on Amstrad CPC, by Titus France.

A Tic-Tac-Toe variant with shoot 'em up elements written by Ed Hobbs and published by Adventure International.

In 480 B.C. a small Spartan force held off Xerxes and the entire Persian army, in the famous Battle of Thermopylae. The Spartans chose to die defending the pass into Greece, to give their allies time to prepare for attack. SPACE SPARTANS reenacts this battle in space, in a heroic adventure that pits you against overwhelming alien odds. You are the elite force. Stop the first alien onslaught and a new alien force appears. Hold the aliens back as long as you can and give your home galaxy time to repare for attack! Score as many points as possible by shooting down alien ships, before your ship is destroyed or you run out of energy. Repair damaged ship systems and re-energize at your 3 starbases. Destroy all aliens on the Sector Grid and a new round starts with more aliens. YOU HAVE ONE SHIP AGAINST A CONTINUOUS ONSLAUGHT OF ALIEN ATTACKERS.

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!