Plants vs Brainrots keeps expanding with new updates, and one of the most important features in the game is the biome system. These biomes change your island’s look, enemies, and rewards — giving you access to tougher battles, better income, and exclusive Secret Brainrots.
If you’ve noticed some players earning way more than you, it’s probably because they’ve unlocked higher-tier biomes. Here’s a complete breakdown of all the biomes in Plants vs Brainrots and how to get them.
What Are Biomes in Plants vs Brainrots?
Biomes are permanent environmental themes that completely transform your island. When you switch to a new biome, the design changes, along with the enemies that spawn and the Brainrots you can collect.
Each biome features exclusive Secret Brainrots that can’t be found anywhere else. Higher-tier biomes like Desert and Jungle also spawn stronger Brainrots with more HP, meaning you earn more money per second by defeating them.
How to Switch Between Biomes
Once you unlock the Desert biome, you’ll notice a totem near the bridge on your island. This acts as the biome switcher. Interact with the totem to open a menu that lets you choose any biome you’ve unlocked so far.
You can switch biomes anytime — it’s completely free, instant, and has no cooldown. This flexibility is useful when farming for specific Secret Brainrots required for fusion recipes or rebirths.
All Biomes in Plants vs Brainrots
Below is a list of every current biome in the game, including how to unlock them and what exclusive Brainrots they offer.
1. Grasslands Biome
- Tier Level: I
- How to Unlock: Available from the start
Exclusive Secret Brainrots:
- Blueberrinni Octopussini
- Brri Brri Bicus Dicus Bombicus
- Crazylone Pizaione
- Garamararam
- La Tomatoro
- Los Sekolitos
- Los Tralaleritos
- Meowzio Sushini
- Pot Hotspot
The Grasslands biome is your starting point in Plants vs Brainrots. It’s beginner-friendly with Tier I Brainrots that are weak and easy to defeat. Despite being the default biome, it offers the most variety of Secret Brainrots — many of which are needed later for fusions and upgrades.
2. Desert Biome
- Tier Level: II
- How to Unlock: Complete Story Brainrot Invasion 25
Exclusive Secret Brainrots:
- El Tacorito
- Pepito Di Pollo
- Meowtronzio
- Bangello
- Rexosaurus Hatcherini
The Desert biome comes next after Grasslands. It introduces a dry, sandy map and tougher Tier II Brainrots that give higher earnings per second. Unlocking it requires you to finish the 25th Story Brainrot Invasion. This biome is important for gathering units like Rexosaurus and Meowtronzio, which are used in rebirths and advanced combinations.
3. Jungle Biome
- Tier Level: III
- How to Unlock: Complete Story Brainrot Invasion 50
Exclusive Secret Brainrots:
- Mela Morta
- Maestro Stuntuffo
- Megalodino
- Conerio
- La Mostardino
The Jungle biome is currently the toughest area in Plants vs Brainrots. It transforms your island into a thick jungle filled with Tier III Brainrots that have high HP and strong attacks. You’ll unlock it after completing the 50th Story Brainrot Invasion. It’s challenging but extremely rewarding, as Jungle Brainrots generate the most money in the game.
Biomes are a key part of Plants vs Brainrots, offering unique enemies, rewards, and exclusive Brainrots in each stage. The further you progress, the better your earnings and collection potential become. Keep completing Story Invasions, unlock every biome, and swap between them strategically to maximize your income and expand your Brainrot collection.