THE ILLUSION – a puzzle game that includes dozens of challenges to pump neurons in the brain, improve memory, feelings and intuition. Logic problems are solved by interacting with the in-game environment. The environment is three-dimensional, and each area includes many interactive objects that have their own role in the passage. The journey begins in a locked mansion with various devices and mechanisms.

The building is surrounded by dark and mysterious forces that prevent the main character from leaving the building. He will need to find out what kind of paranormal phenomenon is haunting him in a large mansion. Dark energy will be the final test of the central character's intellectual abilities. Each task is aimed at pumping a separate part of the brain, such as memory, attention, logic and feelings.

The plot follows Martin, who finds himself on the doorstep of a mysterious house in search of a cult. Previously, he tried to get information about an unknown structure and a group of people with magical skills. He needed to get information about the location of the mansion. Having reached the desired place, he remained locked inside until he unraveled all the secrets of the long-standing cult. He will be accepted into the group, or he will die without revealing the mystery of his whole life. The user will need to find key items and open doors with mechanisms, moving through the plot.