Gaming Guide

Build Your Backrooms: How to Rebirth and Every Rebirth Unlock

The exact building, plot, and cash conditions to rebirth, plus what each of the six resets unlocks.

The exact building, plot, and cash conditions to rebirth, plus what each of the six resets unlocks.

Rebirth is the main progression lever in Build Your Backrooms, the Roblox maze‑tycoon where you trap wandering visitors and earn cash from monster captures. Unlike most tycoon games, a rebirth here does not tear down your maze. It simply checks three conditions, then grants a permanent income boost along with new rooms and monsters.

Quick answer: Open the Rebirths menu, meet all three requirements at once — the listed number of placed buildings, the listed number of unlocked plots, and the full cash amount held in your balance — then press the Rebirth button. Your built maze stays intact.


The three rebirth requirements

Every rebirth level asks for the same three things at the same time. The Rebirths menu shows your current progress against each target, such as “Buildings 25/60” or “Cash $170.46K/$75K”. You cannot rebirth until all three lines are met.

RequirementWhat it checks
Buildings placedThe number of building pieces sitting in your maze. Cheap parts count the same as expensive ones.
Plots unlockedThe number of base plots you have bought. High rebirths can require nearly the whole map.
Cash heldThe full amount in your balance at the moment you rebirth. It is not cumulative.

Note: The cash requirement is the one that trips players up. You must actually hold the full sum when you press Rebirth. If you spend it on rooms or monsters first, the counter drops and the rebirth stays locked.


Confirmed requirement values by level

The targets climb sharply as you advance. The first two rebirths sit at modest cash amounts, while the later tiers move into the millions, eventually reaching $9 million or more around Rebirth 5 and Rebirth 6.

RebirthBuildingsPlotsCash
Rebirth 12412$10K
Rebirth 26028$75K

Beyond Rebirth 2, the cash cost keeps scaling and the plot demand grows until you are unlocking almost every plot on the map. Because each reset also raises the bar for the next one, it pays to confirm all three counters before you commit.


How to rebirth

Fill the building requirement with the cheapest parts available. Buying stacks of Yellow Crossroads meets the building count for a fraction of the cost, leaving more cash for plots and monsters.
Keep buying base plots until your unlocked‑plot counter reaches the target. New plots also raise your monster limit, so this progress carries over usefully.
Save up to the full cash figure and stop spending. Let your monster captures build the balance until it matches the amount shown in the Rebirths menu.
Open the Rebirths menu, confirm all three lines are satisfied, then press the Rebirth button. The reward for that level applies immediately.

You know it worked when your rebirth level ticks up, the new income multiplier is active, and the newly unlocked rooms and monsters appear in their shops. Items that were previously marked “Locked (Needed 2 Rebirth)” become buyable once you reach that level.


Your maze is not wiped

This is the key difference from typical tycoon resets. Rebirthing in Build Your Backrooms does not delete your placed buildings or flatten your layout. Everything you have built stays where it is, so you keep the capture setup you spent time tuning while still collecting the reset rewards.


What each rebirth unlocks

Each level adds an income multiplier plus a batch of stronger rooms and monsters. The first rebirth also opens biomes, which let you change the visual style of your maze and add extra bonuses. Later rooms carry higher multipliers, so pairing your best monster with a high‑value room near the entrance is where the reward payoff compounds.

RebirthBuilding unlocksMonster unlocks
Rebirth 1Old Storage Room, Pipe Corridor, Electrical Room, Service Turn, Ventilation Room, Alarm CorridorHound, Crawler
Rebirth 2Tiled Corridor, Shallow Pool, Pool Turn, Steam Room, Drainage CrossroadSiren Lamp, Water Dweller
Rebirth 3Hotel Corridor, Guest Room, Hotel Service Hall, Old LobbyHotel Keeper
Rebirth 4Snack Room, Neon Corridor, Arcade Turn, Mirror HallMimic
Rebirth 5Dark Corridor, Fake Exit, Entity NestGlitch Entity
Rebirth 6Red PoolRed Watcher

The income multiplier is permanent and stacks across resets, adding to your maze’s earning rate as you climb. In the Rebirth 2 menu, for example, the reward line reads “+0.5 Income Multiplier” alongside new shop items like the Flickering Corridor and Siren Lamp.


Why a rebirth stays locked

If the button will not trigger, one of the three counters is short. The most common cause is spending cash below the required amount right before rebirthing, since the check reads your live balance rather than a running total. Confirm the buildings and plots lines are both at target too, then top your cash back up to the full figure and try again.

Because your maze survives every reset, the fastest route through the tiers is to farm the building and plot counts with cheap parts, bank the cash, and rebirth the moment all three lines turn green. Each level then hands you stronger rooms and monsters to push your income higher for the next one.