Build Your Backrooms
Build Your Backrooms Events Schedule: New Biome Update and What’s Next
Build Your Backrooms is a build-and-survive maze game on Roblox from the studio Wind Sun Moon [WSM]. You design your own backrooms labyrinth, stock it with monsters, and lure other players in to see whether they can find a way out — and because those monsters keep hunting even while you are logged off, your maze stays a threat around the clock. It has grown into one of the platform’s busier experiences, with roughly about 2,200 players exploring mazes right now and more than about 73,000,000 visits logged since it launched.
The game has also collected over about 390,000 favorites. Here is where the schedule stands as of November 11: there is nothing on the calendar at the moment. The studio’s most recent event, the New Biome & Monsters update, wrapped up on October 11, 2026, and no follow-up has been announced yet. We update this page as soon as that changes.
Play Build Your Backrooms on Roblox ↗
Recently ended1 wrapped
Level Fun + Battle Pass
Many new monsters
Oct 30, 12:00 PM – Nov 6, 11:00 AM ET
The update introduces a new level, battle pass system, additional items, and sprint and flashlight mechanics.
Roblox and the games named here are trademarks of their respective owners. AllThingsHow is not affiliated with or endorsed by Roblox Corporation or the game developers.
The most recent event: New Biome & Monsters
The last event Wind Sun Moon [WSM] ran was the New Biome & Monsters update, billed simply as the game’s big update. It opened on Sunday, October 4, 2026, at 12:20 p.m. ET (9:20 a.m. PT, 4:20 p.m. UTC, 5:20 p.m. BST) and ran for a full week, closing out on Sunday, October 11, 2026, at 12:00 p.m. ET. More than about 68,000 players marked themselves interested.
The update leaned heavily on fresh building material. It added a new rebirth tier, a new biome to lay mazes in, and a batch of new monsters and buildings to collect and place. It also raised the per-floor monster limit to ten and improved the drop odds on the better collectibles — changes aimed squarely at players deep enough into the loop to be chasing rarer catches.
What’s next
Nothing is scheduled right now. With the New Biome & Monsters update finished, the developer has not put a date on its next one, so there is no countdown to point to for the moment. When Wind Sun Moon [WSM] lines up another update, the dates and start times will appear in the schedule above.
Frequently asked questions
When is the next Build Your Backrooms update?
There is no new update on the calendar as of November 11. The most recent one, the New Biome & Monsters update, ran from October 4 through October 11, 2026. We will note the next date here as soon as the studio announces it.
What was in the latest Build Your Backrooms update?
The New Biome & Monsters update added a new rebirth tier, a new biome, and new monsters and buildings. It also bumped the per-floor monster cap to ten and improved the chances of landing rarer items.
How many players does Build Your Backrooms have?
About about 2,200 players are in the game right now. All told it has drawn more than about 73,000,000 visits and over about 390,000 favorites.
What time do Build Your Backrooms events start?
Start times vary from one update to the next. The last one, the New Biome & Monsters update, went live at 12:20 p.m. ET (9:20 a.m. PT, 4:20 p.m. UTC, 5:20 p.m. BST). When a new event is scheduled, its exact start time will be in the schedule above.