One of the first 'almost' 3D space games.
Easily playable, with a dozen or so controls for flying a ship (the Centurian) against a fleet of Myon vessels (3 Types) which are invading the solar system.
Although not on a par with the likes of Elite, it was playable (and had an ending).
There were a few very minor bugs in the programming but these had no effect on the playability.