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Watch trailer on Steam ↗Backrooms Lost Runners
ShimStudioGames · Published by ShimStudioGames
Mostly Positive — 77% positive (734 reviews) · 19 achievements
Last updated 28 Sept 2026
Backrooms Lost Runners is a co-op survival horror with team play, voice-reactive AI, and immersive puzzles. This isn’t a “walking simulator”: explore liminal spaces, outsmart entities, and remember—even a whisper can give you away.
£11.79
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Price history
Action, Adventure, Indie, Early Access · 2026 · More £5 - £15 games
Navigate the Backrooms as a team of Lost Runners, evading threats and solving puzzles in ShimStudioGames' 2026 early access survival horror experience.
About this game
Backrooms Lost Runners is a cooperative survival-horror experience where teamwork is your only real weapon
and even your voice can put you in danger.
Trapped inside the endless corridors of the Backrooms, you and your friends must explore abandoned camps, solve environmental puzzles, manage scarce resources, and survive encounters with entities that react to sound, light, and movement. Every dark hallway hides a threat. Every whisper can give you away. Every wrong decision can separate the group forever.
Key Features
Immersive Horror Atmosphere
Venture through dimly lit corridors, abandoned shelters, and unstable spaces filled with oppressive silence, dynamic lighting, and realistic sound design. In the Backrooms, every footstep matters and every moment of silence feels wrong.
Cooperative Survival
Survival depends on communication, trust, and coordination. Share resources, split responsibilities, solve puzzles together, and make difficult choices as a team. Staying together is safer but sometimes the best loot is found far from the group.
True Cooperative Gameplay
Collaboration is crucial for survival. Manage your resources, coordinate tactics via voice chat, and make collective choices.
Voice-Reactive Threats
Face entities with different behaviors and weaknesses. Some react to sound. Some hunt through darkness. Some appear when your mind starts to break. Learn how they behave, stay quiet when needed, and use your environment to survive.
Sanity System
Darkness, fear, isolation, and supernatural events affect your mental state. Stay near light, heat sources, and safe areas to slow sanity loss. If your mind collapses, the Backrooms will begin to change around you.
Tesseract Afterlife
Death is not the end. When you die, you are pulled into a surreal Tesseract realm where you must find a way back to life. But returning may cost you time, resources, and the safety of your team.
Storyline & Quest System
Discover journals, audio recordings, floppy disks, and unsettling traces of survivors. Piece together the timeline of the catastrophe, uncover the fates of those who were here before you, and find out what is really happening inside the Backrooms.
Resource Management & Character Progression
Scavenge for food, clothing, and tools to maintain health, stamina, and sanity. Will you risk venturing alone for high-value loot, or stick close to your squad?
Find valuable items and resources by exploring camps, lockers, and shelters.
Reality-Bending Anomalies
Zero-gravity zones, sudden teleportation gates, shifting walls, broken physics, and impossible spaces will force you to question what is real. In the Backrooms, the environment itself can become the enemy.
YOUR ADVENTURE IS JUST BEGINNING.
System Requirements
Will my PC run this? →Minimum
- OS: Microsoft Windows 10 64-bit
- Processor: i5-3570 3.4 GHz 4 Core or higher (or AMD equivalent)
- Memory: 8 GB RAM
- Graphics: GTX 1050 ti or higher
- Storage: 6 GB available space
Recommended
- OS: Microsoft Windows 10 64-bit
- Processor: i7-7700K 4.20 GHz or higher (or AMD equivalent)
- Memory: 16 GB RAM
- Graphics: RTX 3060
- Storage: 6 GB available space
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
Hotfix — 0.5.417
HotfixFixesFixed a softlock related to restoring power to the main code lock on Level 0.Fixed collision issues on several objects in the procedurally generated area of Level 0.Fixed incorrect power cable directions.ChangesAdded two safe zones to the Dark Zone. Thank you to everyone who submitted bug reports - your feedback helps us find and fix issues much faster.Stay tuned for more updates and news in our Discord.Read full article on Community Announcements (El Glommy)Patch NotesOfficial
Update 0.5 - Procedural Levels, New Entities & Major Reworks
UPDATE 0.5 IS HERE Runners, Update 0.5 is finally here.This is one of the biggest updates we have released for Backrooms Lost Runners so far. We have added entirely new systems and content while also reworking many existing parts of the game.Procedural generation, new areas, new entities, new hazards, major progression and balance changes, a completely reworked sound detection system, improved voice chat, lighting changes, fixes, and much more. We strongly recommend starting a new playthrough with Update 0.5.Old save files are officially not supported and may cause broken events, incorrect progression, missing objects, or other issues due to the scale of the changes made to the game.Starting with Update 0.5, future save compatibility will be supported. • Added a completely new procedural level generation system, creating different layouts and routes between playthroughs.• Added the Spray Can, allowing players to leave their own markings on walls and use them to navigate large and procedural areas.• Added new areas to Level 0, greatly expanding the amount of space available for exploration.• Added new areas and content to the Dark Zone.• Added new entities and hazards throughout the Backrooms.• Added Moth Eggs that react to player-generated noise and can spawn Moths when disturbed.• Added new gameplay scenes, encounters, events, and progression sequences.• Added additional navigation elements and environmental hints to several areas.• Added and improved the in-game text chat for co-op players.• Completely reworked the lighting across many areas, improving atmosphere, visibility, and the overall visual presentation of the game.• Reworked the difficulty and behavior of the Smiler to make encounters more balanced and consistent.• Significantly changed Moth behavior and their reactions to players.• Reworked several existing entities and how they interact with players and the environment.• Completely reworked the system responsible for detecting sounds created by players....Read full article on Community Announcements (El Glommy)Patch NotesOfficial
Upcoming Update: Expanded Levels, New Entity & Major Fixes
Hello, Runners!Our team is actively working on bug fixes, gameplay improvements, and new content for the game.Many of you have shared feedback about bugs, technical issues, and other rough edges. We truly appreciate every report and are working hard to fix these problems and improve the overall experience. Unfortunately, this process takes time, but your feedback directly helps us make the game better.At the same time, we are expanding existing levels with additional areas to explore, more varied routes, and new gameplay sequences. What's Coming in the UpdateEpisode 0Level 0 expansion. Selected areas of the level will now feature procedural generation with unique seeds and layout patterns. Each new game will generate a different version of these areas.A new puzzle and several short gameplay sequences have been added to the level.Episode 1The Dark Zone has been reworked. The routes leading to the first and second levers have been redesigned.New areas and more interesting routes have been added.The visuals have been updated to create a stronger liminal atmosphere.More parkour sections and dynamic traversal elements have been introduced.Level 1 has received smaller changes to several routes and puzzles.Spray paint has been added in two variants: standard black paint and multicolored glow-in-the-dark paint.A new entity has been added: Regular Bacteria, featuring new AI designed for procedurally generated areas.Many new Easter eggs inspired by the original Backrooms have been added.Fixes Included in the UpdateFixed an issue that caused keys to disappear from car trunks.Fixed Alpha Bacteria falling through the environment or becoming stuck.Fixed FPS drops caused by Alpha Bacteria on Level 1.Reworked and simplified the Smiler's AI to make its behavior more stable and reliable.Still in DevelopmentGameplay balance adjustments. Crafting will play a larger role, and resources will become scarcer throughout the game.Level-design fixes for areas where players could become stuck....Read full article on Community Announcements (El Glommy)Patch NotesOfficial
Progress Update: AI, Balance & Liminal Backrooms
Hello, Runners!We are working on the next update for Backrooms Lost Runners, and this one is focused on making the game feel more balanced, more dangerous, and more liminal.Here is what we are currently working on:Improved AI behaviorUpdated locationsNew procedural generation for a cleaner, more original and liminal Backrooms experienceProcedurally generated loot, structures, boxes, and various objects inside those locationsReworked loot economyMore reason to fight, survive, and collect better clothingClothing balance changesWeapon stat balance changesStamina cost rebalanceSanity drain rebalanceBug fixes and stability improvementsIn the new procedurally generated areas, you will be able to find different loot, boxes, structures, and other objects that make each run feel less predictable. We also want to say a huge thank you to everyone who sends bug reports through F1. Your reports help us a lot and make it much easier for us to find and fix issues.Thank you for playing and helping us improve the game. More news soon!Read full article on Community Announcements (Shimaletik)AnnouncementsOfficial
Backrooms Lost Runners Is Out in Early Access!
Backrooms Lost Runners Is Now Available in Early Access!Runners,We’re excited to announce that Backrooms Lost Runners is now available in Early Access on Steam.Thank you to everyone who waited for the game, played the demo, added it to their wishlist, shared feedback, and supported us throughout development. Your support helped bring this project to release.Gather your team, invite your friends, and begin your first survival run today. Explore unstable spaces, solve environmental puzzles, manage your resources, and survive the entities waiting in the endless corridors.Early Access is only the beginning. Our focus during this stage is to improve the game, fix issues, polish the experience, expand content, and use player feedback to guide development.Share your thoughts in the Steam Discussions, report bugs, and let us know what you think after your first run.The Backrooms are waiting.Read full article on Community Announcements (El Glommy)
