In the game, the player assumes control of Jan Dolski, a space miner who must create alternate versions of himself in order to survive on an inhospitable planet.

Jan needs to pilot a massive, wheel-shaped base along the planet surface to stay out of the range of the sun, which can kill him due to lethal radiation.

[1] It is a survival game in which players need to explore the planet and mine for resources and materials, which is essential for maintaining and expanding the base.

Alters are alternate versions of himself who made different life choices, and therefore, have their own distinct skill sets, lifestyles and personalities.

While there are multiple ways for players to solve a certain problem, they would not have time to perform every task and therefore, must think strategically and prioritze their goals.

The story of the game, which focused on how life choices and decisions may have led to very different outcomes, was created to supplement the setting.