Dreamless is a simulation game set in a mysterious town where every 25 years, a dark event known as 'death week' unfolds. Players step into the shoes of John, a senior student and video blogger, who embarks on a chilling adventure to uncover the truth behind the town's horrifying disappearances. The narrative unfolds over the course of a week, specifically from August 1-7, when the town is gripped by fear and paranoia. As the protagonist, players will engage with the eerie atmosphere and intriguing lore, piecing together clues that hint at a possible serial killer or an ancient curse.

The gameplay focuses on exploration and decision-making as John and his friend Will venture into a long-abandoned house linked to the town's dark past. The simulation aspect allows players to immerse themselves in the environment, interact with various elements, and uncover the mysteries surrounding the town's history. With its gripping storyline and atmospheric setting, Dreamless presents a unique blend of horror and simulation that challenges players to confront their fears while seeking the truth.