Backrooms Lost Runners is a co-op survival horror game where survival depends not on weapons but on the ability to work together. A group of players finds themselves trapped in endless levels of Backrooms — a place where familiar reality has long since ceased to function according to its usual rules. To escape, they will have to explore abandoned camps, search for resources, and constantly monitor their surroundings. Silence becomes a matter of life and death Many entities react to sound, light, and movement. Loud conversation can attract the attention of something you'd rather not encounter in the dark. Players must coordinate actions via voice chat, share findings, and make decisions that determine the fate of the entire team. Sometimes it's safer to stick together, but the most valuable supplies are often hidden far from everyone else. The mental system poses an additional threat. Prolonged exposure to darkness, loneliness, and encounters with inexplicable phenomena gradually affect one's perception of what is happening. As one's condition worsens, the world around them begins to change, transforming familiar corridors into an even more dangerous place. Even death is not the end of the journey, as those who perish find themselves in the mysterious Tesseract, where they have a chance to return. Features of the game Co-op horror for joint play. Entities that respond to sound, light and movement. The system of reason with a change in the perception of the world. Exploring the Backrooms and finding a way out of the trap.