Star Raiders II is a game released in 1986 for the Atari 8-bit home computers and game consoles. As a sequel to Star Raiders it contains many similar elements, namely, the enemies are the Zylons, the ship can travel through hyperspace and it refuels at starbases. Unlike Star Raiders, there is a scoring system and the action takes place both around planets and in open space. The game at one point was intended to be based on the The Last Starfighter film.
The game starts with the player's ship orbiting their homeworld as it falls under attack by Zylon fighters. Also featured are diamond-shaped Destroyers and Flagships. After the player defeats the fighters the space around the planet is free of hostile ships. After any other encounter with fighters, the player may fight associated star destroyers. Star Destroyers are more durable and have more powerful weapons.
The player may move between stars, planets, starbases, enemy fleets, and another star systems using hyperspace. Travelling to a star automatically refuels the player's ship, but spending more than a few seconds in orbit will destroy it. Enemy fleets originate at the alternate star system and move slowly across the warp targeting screen to planets or starbases. When they arrive at planets, they no longer have flagships and when they arrive at a starbase only fighters remain.
The player must defend his own planets by intercepting enemy fleets in space. If they are allowed to reach a planet, they will attack it and destroy cities until the planet is barren. Should they reach a starbase, the player will no longer be able to refuel. The player can jump through a wormhole to the Zylon home system and attack their home worlds. Victory is achieved by destroying all the cities upon the surface of the Zylon worlds, while preserving those on your own.
Commands are issued via the joystick and keyboard. Around a planet there are three weapons available, lasers and an ion cannon provide ship-to-ship fire while bombs can be used to destroy cities. In space only the ion cannon and lasers are available.
The ZX Spectrum version received mixed reviews; Your Sinclair awarded 8 out of 10, Sinclair User awarded 5 out of 5 stars, but CRASH only awarded 52%, feeling it did not compare favourably with the similar Codename MAT.