In the popular Roblox game Steal a Brainrot, expanding your base is essential for progressing and defending your collection of Brainrots. One of the key upgrades you'll want early on is the second floor, which allows you to place more Brainrots, increase your income, and improve your defenses. But how do you unlock it?

Here's a detailed guide on how to get the second floor in Steal a Brainrot.
Before you can build a second floor, you need to complete at least two rebirths. A rebirth in Steal a Brainrot resets your current progress (Brainrots, money, weapons, etc.) but gives you access to new features and benefits, such as extra floor space and exclusive Brainrots.
To unlock the second floor, you must reach Rebirth 2. Here's how to speed up the process:
It may take several hours of grinding to reach the second rebirth, but once you do, the second floor becomes available.
To make the grind easier and reach Rebirth 2 faster, many players choose to invest in rare or high-tier Brainrots early. These powerful units significantly boost your income and give you a competitive edge in both offense and defense. If you're looking to skip the slow start and jump straight into the action, check out the best Steal a Brainrot Brainrots for sale and start building your empire today.
After you reach Rebirth 2, you will see an option to expand your base upward. Look for a button or prompt near your base that says something like “Build Second Floor” or “Add Floor.”
Once you confirm the upgrade:
Getting the second floor gives you a major advantage:
This is especially important as you start collecting higher-value Brainrots like La Vacca Saturno Saturnita or Los Tralalleritos, which other players will want to steal.
Unlocking the second floor is a major milestone in Steal a Brainrot, and it puts you one step closer to dominating the leaderboard.