The Alters has received The Alters: Last Variable, a new expansion from 11 bit studios that adds approximately 20 hours of gameplay to the acclaimed science fiction survival experience. Now available for PC, PlayStation 5, and Xbox Series X|S, the expansion broadens the original adventure with a brand new story featuring new mechanics, fresh challenges, and additional alternate versions of its protagonist.

The story follows Jan Scientist, whose mission remains unfinished even after the events of the base game. Determined to understand a mysterious phenomenon known as the Oasis, a lush environment that emerges amid the planet's desolate landscape, he realizes he cannot complete his research alone and assembles multiple alternate versions of himself to carry out the most important scientific investigation of his life.

Joining the expedition are a Geologist, a Biologist, a Chemist, and a Physicist, each bringing specialized expertise to uncover the secrets of the Oasis while overcoming the planet's increasingly dangerous conditions. The new storyline further develops the game's central concept by combining scientific research, survival, and strategic decision making through the cooperation of Jan's alternate selves.

The expansion also introduces new regions to explore alongside a terraforming system that gradually reshapes the environment as players progress. Each stage of the transformation alters the landscape, reveals previously inaccessible resources, and triggers more severe planetary hazards, including stronger earthquakes, intense radiation waves, and other environmental threats that demand careful planning.

Players can further develop their underground base by building on different terrain types, researching advanced technologies, and unlocking new facilities such as the Cryogenic Chamber. This module extends the available time for scientific research and allows players to observe the long term effects of ongoing experiments.

Another major addition is the introduction of Field Laboratories, which become operational after each planetary cooling cycle. During these brief exploration windows, players can venture onto a dramatically transformed surface while the Alters continue conducting scientific tasks independently as Jan remains in cryogenic sleep, adding another strategic layer to both resource management and scientific progress.