Mutagen.io

Contains adsIn-app purchases
3.6
52 reviews
10K+
Downloads
Content rating
Everyone 10+
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About this game

Join the Battle in Mutagen.io!
Take control of Dr. Hero, a fearless scientist turned warrior, and defend the city against a mutant outbreak in this fast-paced roguelike action shooter.

Customize Your Arsenal
Choose from a wide variety of weapons—each fully customizable with up to 6 powerful augments. Whether you favor fire, ice, explosives, or rapid-fire madness, build your perfect weapon to suit your playstyle.

Upgrade Your Hero
Collect mutagens and coins to enhance your hero's stats, unlock new abilities, and level up your skills. Adapt and grow stronger with every run.

Deep Strategy, Endless Combos
Mutagen.io is more than just shooting—it's about strategic builds and synergies. Combine weapons, augments, gameplay cards, and character traits to unlock powerful and unique playstyles.

Cartoony Action, Vivid World
Enjoy smooth, over-the-top animations and a bright, stylized art direction. The chaotic mutant battles are brought to life with satisfying effects and personality-packed enemies.

Challenging Enemies, Evolving Gameplay
From swarmers to brute bosses, every mutant has unique attack patterns and behaviors. React, adapt, and survive against waves of increasingly difficult enemies.

Why You'll Love Mutagen.io:
Deep customization and build variety
Fast-paced, satisfying combat
Unique weapons and augment system
Colorful graphics and smooth animation
Roguelike progression with endless replayability


No two runs are ever the same. Can you build the ultimate mutant-slaying machine?
Download now and join the fight!
Updated on
Jun 27, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Financial info and 3 others
This app may collect these data types
Location, Financial info and 3 others
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

3.5
50 reviews
David Dobrev
October 16, 2023
The gameplay is fun, but the game is too buggy. Progress gets lost (clearing level 3, but now only having access to Level 2 instead of unlocking 4), and half the time the game freezes in the middle of a fight which causes you to have to start over.
2 people found this review helpful
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Playcus Limited
October 17, 2023
We completely understand how frustrating this must be for you and will relay this message to the appropriate department. Our team is doing everything we can to resolve this as fast as possible.
SomeSameSam
June 6, 2024
It's the cartoonish version of the game called "Vampire Survivors". I liked it but at some point it starts to lag and drop fps so there can be somethings with the optimization. Other than that great game.
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Playcus Limited
June 6, 2024
We are sorry to see you are having problems! The performance of the game is a priority for us and something we will continue to optimize.
eddie albert
October 21, 2023
It was great until the game started freezing up, twice it done this. I like the game, no forced ads nice flow. Please fix the issue.
2 people found this review helpful
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Playcus Limited
October 23, 2023
Thanks for your feedback. We're sorry to hear that the game does not work properly. You could try to restart the device and ensure that enough memory is available. Also, please ensure your Internet connection is strong enough. We hope one of these works for you.

What’s new

General changes
* Game balance and monetization improvements
* Bug fixes and performance improvements