Satan is an Astronaut is an engaging adventure game for Windows that immerses players in a surreal narrative. Set in a mysterious forest, the player embodies a woman plagued by severe delusions who awakens on 'The BUB,' a prototype generation ship from Faust Corporation. As she navigates her surroundings, players encounter a spirit from her past, unraveling the complexities of her reality. The game combines elements of exploration and puzzle-solving, challenging players to decipher what is real and what is imagined.

The gameplay focuses on the protagonist's journey through her mind, offering a unique blend of storytelling and gameplay mechanics. Players must interact with the environment and uncover clues to progress, creating an immersive experience. With its intriguing premise and atmospheric setting, Satan is an Astronaut invites players to question the nature of reality while exploring the depths of the protagonist's psyche.