"Superfast smooth scrolling shoot-'em-up action", states the blurb on the packet. Psycastria is one the fastest, most difficult and addictive games to be released for the Beeb.
The idea of the game is to fly above the surface of four different 'installations' (on land, sea, the moon and in space) destroying energy pods. The screen windows a section of the current level, which scrolls smoothly from side to side.
You control a spaceship that can travel left, right, up and down. Some buildings rise above the surface and so must be avoided; other obstacles such as fighter planes can be destroyed for extra points. The best part of Psycastria is the graphics which, despite being shown on a rather small screen, are colourful and detailed.
The presentation, sound effects and playability are all excellent. My main complaint is that Audiogenic say that the game (tape version anyway) will not load with Replay fitted.
Overall, this is a top-class game. Very addictive and challenging and worth buying even if you're not a shoot-'em-up fan.