Callisto It begins due to an unfair fate that overtook a couple in love. They turned out to be separated and alone overcome the dangers of space travel. Managing the protagonist, who was alone in the new world, will have to explore the environment and find out the cause of what is happening. The place of action is the lifeless planet-satellite of Jupiter-Callisto.

The young couple finds himself in the adventure in the new world, but the turned on the walkie -talkie on the command station asks for help to people locked in distant areas of the base. The initial task of the girl and the man was as follows: linger for several days and leave in his native place. Without hesitation, they went to a rescue operation, during which they separated because of the destructive building. The storyline is moving through the study of play areas and the performance of tasks displaying on the interface.

The user controls the protagonist communicating with a mythical companion. In addition to the main locations, the extensive base includes additional places for study. The player will get out of Callisto, where the rocks and fog will visit, will visit the dark caves and abandoned laboratories. Often the adventure turns into a psychological horror due to frightening sounds, spilled everywhere in blood, flashing light and unknown sounds. The ward interacts with the surrounding objects, solving puzzles or acquiring useful items.