"One of the Class VII B ships of the ill fated Galactic Colonisation Programme has mysteriously re-entered Earth space . . . totally silent. Non humanoid life forms have been detected on board. Enter the ship and take part in this extraordinary graphic adventure through 120 rooms to solve the enigma of the STAR DRIFTER . . ."

Your adventure aboard this ancient colonisation liner begins on the bridge; your task - to discover the answers to this strange disappearance of the fleet.

You may move freely around the open areas of the ship, discovering artifacts and clues; but many parts will be inaccessible to you without the keys to the computer controlled doors scattered around.

Beware of the intermittent force fields in some of the corridors which will drain your Oxygen supply when active. However, with an oxygenator unit, it is possible to replenish your Oxygen supply by standing in one of these forcefields. Watch out for the many alien life forms that have infiltrated the ship; they will rapidly reduce your oxygen supply if they are allowed to touch you.

Each of your three lives will be terminated when the Oxygen supply is exhausted.

When the game has loaded, you will need to select the keys that you wish to use. From the title page, you may start the game by pressing SPACE.

Initially, communication with the Earth is impossible. Your first task therefore will be to locate the ship's radio and return it to the bridge, which is where you start the game.

You may only carry three items at any time; these are displayed on the left of the screen.