Cylu is a budget version of those 3D maze games that were made so popular by Ultimate when the Spectrum was at its peak of popularity and these games were in vogue.
In this case you play the part of a minion robot who has to collect 24 objects that are hidden around a maze. The maze is displayed on one side of the screen in the traditional isometric 3D manner.
Various things are in the maze that will help or hinder you. The usually sparse instructions are here as in every other type of game like this, and finding out exactly what you have to do is part of the game.
The main problem with the game is that you can only carry four objects at the same time. And all 24 objects must be returned to the start point, only then will you be deemed to be worthy of being the new robot leader.
There seems to be no end to the number of 3D maze games that are hitting the market, despite their budget placing nowadays. Nor does there seem to be an end to the number of people that want to play them. This game should fill the gap for a short while anyway, especially when you have the ability to examine and use the objects as well as saving the game. Saving and loading the game is one of the most useful features that I have ever seen on a game like this. And, after all, £2 isn't bad for a game like this either.