The player controls a surface rover vehicle to enter several "rifts" on an alien planet which are effectively fractal mazes.

A lost civilisation known as the Ancients[4] has left strange machinery, so-called "hulks",[5] within these rifts which are guarded by armed flying saucers of different design and color.

By means of a drone robot, the rover can retrieve modules with various functions (which are not immediately obvious) from nearby hulks.

[3] To this end, the player must explore the rifts, find hulks, retrieve and analyze modules and understand the color-coding of weapons and shields to overcome the increasingly aggressive and dangerous saucers.

[7] Zzap!64 thought that the game was an improvement on its predecessor, Rescue on Fractalus, with superior graphics and gameplay.