Update on January 20th:Â Added all the newest biomes in Plants vs Brainrots.
Plants vs Brainrots is getting bigger every week. When you play the game, you’ll notice that the playing field now has different sections. That’s the reason why some players are making way more money than you in the game. Each biome brings tougher enemies, better rewards, and most importantly, exclusive Secret Brainrots you can’t get anywhere else. Here is the guide to all the biomes in Plants vs Brainrots.
What Are Biomes in Plants vs Brainrots?
Biomes are permanent changes you can make to your island. When you switch biomes, the whole look of your island transforms. Each biome comes with its own set of Secret Brainrots that only spawn in that specific environment.
The enemies you face will also change based on your biome. In higher-level biomes like Desert and Jungle, the Brainrots spawn with way more HP. When you defeat these stronger enemies, they will generate more cash per second, so your earning potential goes up significantly.
All Biomes in Plants vs Brainrots
Here is the list of all available biomes in Plants vs Brainrots and how to unlock them:
| Biome | Image | Tier Level | How to Unlock | Exclusive Secret Brainrots |
|---|---|---|---|---|
| Grasslands |  | Tier I | Available from the start | • Blueberrinni Octopussini • Brri Brri Bicus Dicus Bombicus • Crazylone Pizaione • Garamararam • La Tomatoro • Los Sekolitos • Los Tralaleritos • Meowzio Sushini • Pot Hotspot |
| Desert |  | Tier II | Complete Story Brainrot Invasion 25 | • El Tacorito • Pepito Di Pollo • Meowtronzio • Bangello • Rexosaurus Hatcherini |
| Jungle |  | Tier III | Complete Story Brainrot Invasion 50 | • Mela Morta • Maestro Stuntuffo • Megalodino • Conerio • La Mostardino |
| Cherry Grove |  | Tier III | Complete Story Brainrot Invasion 75 | • Cocolini Crabelo • Moppo Moparoni • Smug Walletino • Fritto Bucketino |
| Birch Forest |  | Tier IV | Complete Story Brainrot Invasion 100 | • Microlini Chickini • Tic Tac Flamone • Verme Skatino • Waterdino • Wrecking Ballone |
| Santa’s Workshop |  | – | Santa’s Arrival Update | • Ruota Elfana • Bambini Christmasini • Peppermint Mortioni • Snowzalone Tralala • Santalone Pizaione |
| Winter |  | Tier IV | Complete Story Brainrot Invasion 125 | • Mad Candelli • Flexini Reflectionini • Heatasino • Freezasino • Yummi Yummi Turkini |
| Mushroom Marsh |  | Tier IV | Complete Story Brainrot Invasion 150 | • Sale And Pepper • Dogge Spione • Scava Escavatore • Dice, Dice, Diceino |
1. Grasslands Biome
This is where every player begins. The Grasslands biome is simple and great for learning the basics. The Brainrots here are Tier I, so they’re the weakest and easiest to beat. Even though it’s the starting area, it has the most Secret Brainrots, which you’ll need for fusion recipes like Meowzio Sushini. Its bright green look fits well with its easy gameplay.
2. Desert Biome
The Desert biome is the next big challenge. It has a dry, sandy look, and the Brainrots here are Tier II, meaning they have more health and earn more money per second than those in Grasslands. You can unlock this biome after finishing the 25th Story Brainrot Invasion event. It also adds special Brainrots like Rexosaurus and Meowtronzio, needed for rebirths.
3. Jungle Biome
The Jungle biome is the hardest one right now. When you unlock it, your island turns into a thick jungle full of Tier III Brainrots with much higher health. You can get this biome after completing the 50th Story Brainrot Invasion event. It’s tough, but worth it, since Jungle Brainrots make the most money per second in the game.
4. Cherry Grove Biome
The Cherry Grove biome can be unlocked after completing the 75th Story Brainrot Invasion event. It’s a calm and peaceful grove covered in cherry blossoms. The Brainrots here have found their inner peace and stay at Tier 3.
5. Birch Forest Biome
The Birch Forest biome can be unlocked after completing the 100th Story Brainrot Invasion event. Thin birch trees grow close together in this golden forest, and tier 4 brainrots roam the area.
6. Santa’s Workshop Biome
You can automatically unlock this biome without having to complete the story mission. When you log in during Santa’s Arrival update, you can go to the totem and change the biome into Santa’s Workshop. There you will be able to defeat Christmas brainrots, get Whiskerwood seeds, and submit them in the Central Island to build Santa’s Platform.
7. Winter Biome
The Winter Totem unlocks a frozen biome covered in snow, with tall trees and harsh, windy conditions. In this area, brainrots are frozen once they reach Tier 4. Enemies found here include Mad Candelli, Flexini Reflectionini, Heatasino, Freezasino, and Yummi Yummi Turkini. This totem becomes available at Mission 125.
8. Mushroom Marsh Biome
The Mushroom Marsh Totem takes you to a strange swamp filled with giant mushrooms towering like trees. The area is home to Tier 4 brainrots. Enemies you’ll encounter include Sale And Pepper, Dogge Spione, Scava Escavatore, and Dice, Dice, Diceino. This totem unlocks later at Mission 150.
How to Switch Between Biomes
Once you unlock the Desert biome, a small totem appears on the left side of your island near the bridge. This totem is your biome switcher. Walk up to it and interact with it to open the biome selection menu.
The menu shows you all the biomes you’ve unlocked so far. You can see which Secret Brainrots are exclusive to each biome, which is really helpful when you’re hunting for specific units. Just click on the biome you want, and your island will transform immediately.
Switching biomes is completely free and instant. There’s no cooldown or cost, so you can change as often as you want. This flexibility is important because different fusion recipes and rebirth requirements need different Secret Brainrots. Good luck with your Story invasions, and enjoy exploring each new biome as you unlock them!
