Here's a teasing glimpse of a Spectrum game, Hedron, which is nearly ready for release. It's being written by a new software house, Union Science, and should be released before Christmas. The company hopes to show a demo version at the Personal Computer World show this week.

Featuring some very complex 3D graphics manipulations the game holds out the promise of substantial prizes. You move around a large maze in which a central computer is hidden - your target is to destroy it. Around the maze gargantuan spheres left over from The Prisoner force you into detours. There are also towers dotted around, and while they can be destroyed, this changes the tower configuration in other parts of the maze.

The game should cost £6 or £7, and we'll be featuring a Star Game review as soon as we can.