A and F Software (using the motto 'Nulli Secundus' which, for you non-classicists, stands for 'Second To None') have produced a 3D space battle for the 48K Spectrum called New Cylon Attack.
The claim that it has isometric perspective in 3D is perhaps questionable, but the game is played in three-dimensional graphics and is of the Star Wars standard.
The Cylons are sending wave after wave of attacking fleets. Each time a new wave appears, you are launched from your mothership and, after each wave has been destroyed, you need to dock in order to refuel.
There are various instruments positioned at the top of the screen, detailed as follows: A radar, giving full information about the approaching wave attack, a shield strength gauge (there is an automatic safety shield should you come under fire, but this obviously deteriorates in strength depending on use), laser status and fuel status.
There is a sight in the centre of the screen with climb and turn indicators, enabling you to position the laser beam to any position on the screen in the attempt to clear each Cylon wave.
Some nice added touches, the ability to save/load the high score table, the ability to redefine the keys and detailed screens with satellites, planets, shooting stars, etc, all go forward to make Cylon Attack a first class arcade game with excellent graphics and realistic sound.