🧠 Brainrots Guide — Passive Income System

Brainrots function as frontline enemies and long-term income engines. Capture, mutate, and manage them to bankroll every upgrade in Plants vs Brainrots.

🔄 Loop🎲 Drops✨ Multipliers📈 Income🏆 Tips

🔄 How Brainrots Work

From lanes to the collection pen—track the full loop.

  • 🚶‍♂️ Brainrots spawn in timed waves that march through dedicated lanes.
  • 🏡 Defeated brainrots join your collection and continue generating passive income, even while offline (at a reduced rate).
  • ⚖️ Heavier specimens produce higher payouts; more kilograms equals more cash.
  • 💰 Sell duplicate catches to Barry the NPC whenever you need an instant money infusion.
📦 Tip: Keep only your highest-weight roll per species—duplicates eat collection slots and lower AFK profits.

🎲 Guaranteed Drops & Luck Scaling

🌠 Legendary

Guaranteed drop every 100 spawns.

🌌 Mythic

Guaranteed drop every 500 spawns.

♻️ Rebirth

Each rebirth permanently boosts luck for rarities.

✨ Mutation Multipliers

Apply these modifiers on top of base income values.

⚪ Normal

1× income

🥇 Gold

2× income

💎 Diamond

3× income

🌈 Neon

4.5× income

🌟 Rainbow

5× income

❄️ Frozen

4× income

🪐 Galactic

7.5× income

📈 Example Income — Matteo (Godly)

Weight dramatically changes returns for high-rarity brainrots.

WeightIncome
⚖️ 5 kg≈ $300 / sec
⚖️ 10 kg$600 / sec
⚖️ 20 kg≈ $1,200 / sec
📊 Combine weight upgrades with Neon or Galactic mutations to hit late-game income thresholds faster.

🏆 Key Tips

Optimize passive earnings and collection quality.

  • 📦 Prioritize bigger, mutated brainrots and release weaker rolls.
  • 🕰️ Time major upgrades around guaranteed Legendary and Mythic pity drops.
  • 🔁 Rebirth early to lock in permanent luck boosts and improve spawn quality.
  • 🤖 Run Auto-Sell with Equip Best to streamline AFK farming sessions.
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