Welcome to the Backroom_Lost! If you need to find gaming partners or learn about updates, please click on the social link on the side to join us!

Traveling through different levels of styles, facing constant physical threats, and vast spaces, can you discover clues to leave and find the possibility of survival when darkness and fear engulf you?

Death or survival; Return or loss; All of this is often decided in an instant, and what you need to do is seize the right opportunity, think carefully about coping strategies, familiarize yourself with the characteristics of each entity and level, and escape in the endless cycle.

Welcome to the backroom: Lost! We have created such a derivative game based on bizarre rules in the back room and combined it with horror puzzle game types. The game has two modes: single player and multiplayer, supports 1-4 players for online gaming, and creates different gameplay styles to bring a sense of tranquility to your gaming experience.

Constantly updating backroom tiers

From comfortable and elegant louvered hotels, to perilous old red district communities, and sacred and elegant pool core checkpoints. There are currently 12 different levels in the back room, and the single player mode map will be remade in the future. Polish your eyes and find clues to escape from this cannibalistic space. Perhaps you will continue to embark on a journey of exploration at different levels.

Optimized and updated multiplayer mode

The game supports 1-4 players to join online and has a comprehensive chat interaction system. You can choose to bring your friends and explore the endless back room space, and escape from here at the last minute!

Functional props system

At present, the game has implemented functional props such as almond water, energy capsules, and axes. Make good use of the resources at your disposal and do not put yourself on the brink of danger. Don't hesitate when encountering obstacles, pick up the axe in your hand and smash them fiercely!

Strange and Varied Entities

Based on the Backroom Entity view, the alpha bacterium that ignores any physical damage, the moon man that paces in the darkness, and unknown new entities that roam around you and fall into their food if you're not careful. Stay quiet! Don't let them get to you first!

Rich and diverse game modes

Are you tired of the classic type of exploration in the back room? Don't worry, the newly launched survival escape mode is guaranteed to make your heart race. Escape from the entity constantly approaching from behind, be careful of the layers of traps set by the hierarchy, and board the escaping train at the last moment! Compete with your partner for the final title of Speed Pioneer! More game modes will appear in the future!

Diverse localized languages

At present, the game supports Chinese, Japanese, English, Russian, and French, and players can freely choose the corresponding language to play. More languages will be continuously added in the future, allowing players from all over the world to experience different backgrounds