Koronis Rift

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 has left strange machinery, so-called "hulks", within these rifts which are guarded by armed flying saucers of different design and color. Depending on their respective color, shields and gunshots of both the rover and the saucers are of varying effectiveness against each other; part of the game is figuring out which shield and weapon modules work best where.

By means of a drone robot, the rover can retrieve modules with various functions (which are not immediately obvious) from nearby hulks. It can only be deployed when all attacking Guardian Saucers have been destroyed. The modules can then be installed in the rover, analyzed aboard the player's space ship, or sold; the rover can carry up to six different modules at a time which can be activated and de-activated as the player sees fit. A large variety of modules is available: different weapon and shield modules with varying power levels and color codes, modules that increase the rover's power output, a mapper (activating an extra screen on the rover), and even one module that turns the retrieval probe into a bomb, destroying any hulks the probe is sent to investigate instead of retrieving modules.

Info rated Koronis Rift four stars out of five, stating that it was the best of Epyx's four Lucasfilm games. Computer Gaming World stated that "if KR is a game, it is also a puzzle ... arcade skill alone isn't enough". The reviewer did not enjoy the game because it was so difficult, but praised the graphics and sound and said it was in the top 10% of Atari games.

64 thought that the game was an improvement on its predecessor, Rescue on Fractalus, with superior graphics and gameplay. It was given an overall rating of 96%. Ahoy! recommended Koronis Rift to fans of Rescue on Fractalus.