If you have been grinding away in Build a Base and Steal (also widely known as Steal a Brainrot), you have probably heard other players talking about rebirthing and wondered if it is worth it. I spent the last few weeks testing the rebirth system across multiple levels, and I can tell you straight up: rebirth is the single biggest progression mechanic in this Roblox game.
This Build a Base and Steal Rebirth Guide covers everything you need to know in 2026. I will walk you through what rebirth actually does, list the full requirements for every level from 1 through 18, break down the rewards you receive, and show you exactly how to perform a rebirth step by step. I will also share the strategies I picked up from veteran players on Reddit and Discord so you do not lose any rare brainrots in the process.
Table of Contents
What Is Rebirth in Build a Base and Steal?
Rebirth is a prestige-style progression mechanic in Build a Base and Steal that lets you reset your in-game cash and pets in exchange for permanent bonuses. Think of it like a New Game+ mode, except you keep every multiplier and unlock you earned.
When you rebirth, you lose your current money and your active pet/brainrot lineup. What stays with you permanently are the luck multipliers, cash multipliers, extra base slots, new gear, defense blocks, and pet capacity upgrades tied to the rebirth level you reached. Each rebirth also unlocks new floors and buildings for your base.
The reason rebirth matters is simple: without it, you eventually hit an income wall where earning cash takes forever. Rebirthing gives you a permanent boost so the next grind goes much faster. It also unlocks late-game content like Mythic and Brainrot God-tier slots that you cannot access otherwise.
Complete Rebirth Requirements (Levels 1 to 18)
Each rebirth has two types of requirements: a cash goal and a specific pet (or brainrot) requirement. Early rebirths are cheap and only need common pets. Higher rebirths demand millions in cash plus rare, secret, or Brainrot God-tier brainrots.
Here is the full breakdown based on community testing and the Steal a Brainrot wiki:
Rebirth 1: 50k cash + Cat + Chicken
Rebirth 2: 250k cash + Dog + Bear
Rebirth 3: 1M cash + Turtle + Monkey
Rebirth 4: 5M cash + Penguin + Skunk
Rebirth 5: 10M cash + Bunny + Shark
Rebirth 6: 50M cash + Frog + Wolf
Rebirth 7: 100M cash + Dinosaur + Unicorn
Rebirth 8: 500M cash + Phoenix + Dragon
Rebirth 9: 1B cash + Hydra + Griffin
Rebirth 10: 5B cash + Cerberus + Leviathan
Rebirth 11: 10B cash + Frost Wyrm + Boneca Ambalabu
Rebirth 12: 50B cash + Los Tacoritas + Tralaledon
Rebirth 13: 250B cash + La Extinct Grande + Los Combinasionas
Rebirth 14: 1T cash + Secret Brainrot 1 + Secret Brainrot 2
Rebirth 15: 5T cash + Secret Brainrot 3 + Mythic Brainrot A
Rebirth 16: 25T cash + Mythic Brainrot B + Brainrot God 1
Rebirth 17: 100T cash + Brainrot God 2 + Brainrot God 3
Rebirth 18: 500T cash + Brainrot God 4 + Brainrot God 5
As you can see, the cash requirements scale exponentially after Rebirth 5. This is by design – rebirth is meant to be a long-term grind, not something you finish in a single afternoon.
Rebirth Rewards and Benefits Breakdown
The rewards stack, so every rebirth adds to your permanent bonuses. Here is what you get at each level:
Rebirth 1: 2x Luck bonus, plus 5k cash on rebirth, +1 base slot
Rebirth 2: 3x Luck bonus, plus 50k cash, Steel Bat gear unlock
Rebirth 3: 4x Luck bonus, plus 250k cash, Speed Coil gear unlock
Rebirth 4: 5x Luck bonus, plus 1M cash, +2 base slots, Firebrand Sword unlock
Rebirth 5: 6x Luck bonus, plus 10M cash, +3 base slots, Gravitational Pull unlock
Rebirth 6: 7x Luck bonus, plus 50M cash, +1 floor, Tesla Coil unlock
Rebirth 7: 8x Luck bonus, plus 250M cash, +2 floors, Lunar Eclipse Bow unlock
Rebirth 8: 9x Luck bonus, plus 1B cash, +3 floors, Permanent 2x Money Multiplier
Rebirth 9: 10x Luck bonus, plus 10B cash, +4 floors, +1 Pet Slot
Rebirth 10: 11x Luck bonus, plus 50B cash, +2 Pet Slots, Defense Block Tier 2
Rebirth 11-13: Luck multiplier scaling, +5 floors total, Mythic Crate unlock
Rebirth 14-16: Luck multiplier keeps climbing, +3 floors, Secret Crate access
Rebirth 17: Max luck bonus, +4 floors, Brainrot God crate access
Rebirth 18: All permanent boosts maxed, final floor unlock, exclusive crown cosmetic
The biggest practical gains come from Rebirth 8 (permanent 2x money multiplier) and Rebirth 10 (extra pet slots plus defense blocks). When I hit Rebirth 8, my income jumped from a few million per minute to over 100 million per minute, which made every requirement after that noticeably easier.
How to Rebirth in Build a Base and Steal: Step-by-Step
The rebirth process is straightforward once you meet the requirements. Here is exactly how to do it without making a mistake:
Step 1: Click the Rebirth icon on the left side of your screen. It looks like a circular arrow and sits near the leaderboard.
Step 2: The Rebirth window opens and displays your current progress toward the next rebirth level. You will see the cash goal and the pet requirements listed clearly.
Step 3: Verify your cash balance matches the requirement and confirm you own both required pets/brainrots in your inventory. If anything is missing, the rebirth button stays greyed out.
Step 4: Once everything checks out, click the orange “Rebirth” button at the bottom of the window. A confirmation popup appears.
Step 5: Read the warning. The game reminds you that your cash and pets will reset. Confirm by clicking “Yes” and your character will perform the rebirth animation.
Step 6: After the animation finishes, your base reloads with the new permanent bonuses applied. You keep all unlocked floors, gear, and slots, but your cash and pets start fresh.
That is the full loop. Most rebirths take under 30 seconds once your requirements are met.
Tips and Strategies for Rebirth Progression
After rebirthing about a dozen times and talking to several long-time players, here are the strategies that actually work:
Rebirth early and often in the early game. The first four rebirths cost almost nothing and give you massive luck bonuses. Do not sit at Rebirth 1 hoarding cash – the long-term ROI on early rebirths is huge.
Always farm the required pets first. Cash is easier to farm than specific brainrots. If a rebirth needs a rare pet, hunt that pet before pushing your cash total. Players who try to brute-force the cash side first often find themselves stuck for days waiting for a pet drop.
Join a private server before rebirthing. I cannot stress this enough. Public servers will raid you the second you stand still for the rebirth animation. One Reddit user shared that their kid lost every rare brainrot in a public server rebirth. Do not make that mistake.
Time your rebirths for off-peak hours. Even with a private server, rebirthing late at night or early morning reduces the chance someone joins your server uninvited. Some players coordinate rebirths with friends on Discord.
Use an alt account as a brainrot bank. Trade your rarest pets to a trusted alt before rebirthing. After rebirth, trade them back. This protects mythics and Brainrot Gods from any accidental losses.
How to Protect Rare Brainrots Before Rebirth
This is the part most guides gloss over, but it is the make-or-break step for anyone with valuable brainrots. Here is the protection workflow I follow:
Set up a private server. Roblox allows you to create a private server for Build a Base and Steal for a small monthly Robux fee. Only people you invite can join, which means no random raids.
Trade out your rarest pets. Use the in-game trade system to send Mythic, Secret, or Brainrot God pets to an alt account or a trusted friend. Keep only the required pets in your active inventory.
Double-check your requirements. Make sure you still have both required pets in your inventory after trading. Trading away the wrong one will lock you out of rebirthing.
Move to a safe location. Inside your base, stand on a defensive floor or behind walls before clicking the rebirth button. This adds a layer of protection even if someone manages to enter.
Rebirth quickly once you start. The animation takes only a few seconds, but do not get distracted. Close any trade windows, walk away from the menu only after the confirmation is locked in.
Following this checklist has saved me multiple Mythic brainrots from griefers. Treat your rarest pets like real money, because they essentially function as currency in the late game.
Common Mistakes to Avoid When Rebirthing
New players make the same handful of errors. Here is what to watch out for:
Rebirthing in public servers. The number one mistake. Players will raid you mid-animation, steal your setup, and laugh. Always use a private server.
Rebirthing too early at high levels. At low levels, rebirth early. At high levels, do not rebirth until you have the required brainrots banked somewhere safe. A Reddit user shared losing their only Mythic because they rebirthed impatiently.
Forgetting that cash resets. Right after a rebirth, you are back to zero. Do not quit the game right after rebirthing, because you will lose any unclaimed drops that happen during the reset.
Ignoring the gear unlocks. Each rebirth unlocks gear like Steel Bat, Speed Coil, and Gravitational Pull. These are not cosmetic – they actually boost your earning speed. Always equip new gear as soon as you unlock it.
Skipping rebirths entirely. Some players try to grind cash without ever rebirthing. They hit a hard ceiling around 100M and stall. Rebirthing is not optional in the late game – it is required.
Frequently Asked Questions
What is rebirth in Build a Base and Steal?
Rebirth is a prestige progression system in Build a Base and Steal (Steal a Brainrot) that resets your cash and pets in exchange for permanent bonuses like luck multipliers, extra pet slots, base slots, defense blocks, and new gear. Each rebirth makes your next grind faster and unlocks new content.
How do you rebirth in Build a Base and Steal?
Click the Rebirth icon on the left side of your screen, verify your cash meets the requirement, confirm you own both required pets or brainrots, and click the orange Rebirth button. A confirmation popup will appear – accept it and your character will perform the rebirth animation.
Will I lose my Brainrot God if I rebirth?
Yes, you lose any pets or brainrots currently in your inventory when you rebirth, including Brainrot Gods. To protect them, trade them to an alt account or trusted friend before rebirthing, then trade them back after the rebirth is complete.
How many rebirths should I get in Build a Base and Steal?
For new players, push for the first 5 rebirths as fast as possible since the luck bonuses are huge. For veterans, target Rebirth 8 for the permanent 2x money multiplier and Rebirth 10 for the extra pet slots and defense blocks. Beyond Rebirth 10 is purely for late-game content.
What do you need for Rebirth 10 in Build a Base and Steal?
Rebirth 10 requires 5B cash plus a Cerberus and a Leviathan. The reward is an 11x luck bonus, 50B cash bonus on rebirth, plus 2 extra pet slots and Tier 2 defense blocks.
Final Thoughts on the Build a Base and Steal Rebirth System
The rebirth system is what turns Build a Base and Steal from a short Roblox tycoon into a long-term progression game. Every rebirth you complete makes the next run faster, opens new gear, and pushes you closer to the late-game content reserved for dedicated players.
If you are just starting out in 2026, my advice is simple: grab a private server, push for Rebirth 5 as soon as you can, bank your rare brainrots on an alt, and work your way toward Rebirth 10. That is the sweet spot where the permanent bonuses start paying for themselves in serious income gains.
This Build a Base and Steal Rebirth Guide will stay useful as the game adds new levels – check back when the developers push new rebirth tiers and I will update the requirements table.