Starship Command

Acornsoft's Starship Command is a computer game released in 1983 for the BBC Micro and Acorn Electron. It was available on cassette and disk as well as on ROM cartridge for the Acorn Electron Plus 1 expansion module. The player assumes the role of captain of a battle starship, charged with defending the frontiers of space from hostile alien ships, which come in two sizes — large and small. In later commands, the larger ships have cloaking devices which make them invisible. Damage is inflicted on ships when they are shot or rammed by other ships. Uniquely for the time, the player vessel remains locked in the centre of the screen and the world rotates and moves around it. The ship has both long range scanners and shields but may only use one at a time. By default the game will automatically switch between them based on the proximity of enemy vessels but the player can optionally take full control. Unusually, the player is never expected to return their ship from the frontiers. Each... full article at wikipedia