Poorly summarised from: http://www.joolsweb.co.uk/tag/

"Three people are stranded on a planet on the far side of the galaxy. In order to return to earth they must first locate a crystal to power their spacecraft. But - and this is where the whole thing begins to get tricky - to find the crystal they must navigate their way through a series of practical and mental problems, devised by a fiendish alien intelligence."

British TV puzzle game show that was almost too surreal. Contestants had to think their way past Gnoard, Dorgan, Uncle the grumbling Aspidistra, Dagnor, The Salamander and Dogran the grumbling dog. Once the contestants had gained many crystals they could try to escape, but they had to face The Vortex!

Notable for it's many low-budget uses of BBC Micro computer graphics, this weird show was aired from 1980 to 1983.

Not to be confused with The Crystal Maze