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Pew Pew Slime - Idle RPG Best Mutations 2025

Thisara Dilshan
|2025-11-05

Get ready to evolve your Slime into an unstoppable battle legend! In Pew Pew Slime - Idle RPG, mutations let your Slime grow stronger with new skills, faster attacks, and unique abilities. In this guide, we explain everything about the Pew Pew Slime - Idle RPG best mutations, how to fuse slimes, choose the right mutation classes, and evolve into the strongest forms. So, build your ultimate Slime and dominate the battlefield!

Pew Pew Slime - Idle RPG Best Mutations

What are the Mutations in Pew Pew Slime - Idle RPG?

Mutations are special versions of your Slime that let you evolve into stronger and more advanced forms for battle. When your Slime mutates, it transforms into a completely new character type with different looks, weapons, and fighting styles.

By advancing your Slime into a mutant form, you can boost its basic stats such as Attack, Speed, Critical Rate, Damage, and Defense. These stat boosts make your Slime much more powerful, especially during boss battles.

Each mutation also unlocks unique active and passive abilities. These abilities help your Slime perform better in fights, ThR Drm some activate automatically (passive), while others you can use during combat (active). To unlock and upgrade mutations, you’ll need to manage your coins and keep upgrading your character. As you progress, your Slime becomes stronger, faster, and more capable of winning even the toughest battles.

Mutations in Pew Pew Slime - Idle RPG

Fuse Your Slimes to Create New Mutations

In Pew Pew Slime - Idle RPG, you can combine your slimes to create a brand-new character called a Mutation Slime. This process is known as Fusion. Your first fusion unlocks at level 10, allowing your Slime and Jelly Drop to merge together. When they fuse, they create a special Mutation Spirit Slime.

This new Mutation Slime comes with powerful active skills and one passive skill that helps you during battles. Fusing your slimes not only makes them stronger but also unlocks new abilities and forms, letting you progress faster and fight tougher enemies with ease.

Level Up Faster to Unlock More Mutations

Leveling up quickly is the key to unlocking the Pew Pew Slime - Idle RPG best mutations. Mutations become available as you reach higher levels,  the first unlocks at level 10, the second at level 20, the third at level 30, and the fourth at level 50. So, the faster you level up, the sooner you can access new mutation forms. Here are the best ways to do it:

  • Use Auto Battle Mode: Turn on the Auto Battle Mode to let your Slime fight automatically. This mode helps you collect resources and EXP without having to control your character manually. It’s an easy and efficient way to grow stronger even while you’re away from the game.

Level Up Faster to Unlock More Mutations

  • Complete the 7-Day Trial: The 7-Day Trial event gives you simple daily tasks that reward you with lots of EXP. Make sure to complete them every day for a quick level boost.

  • Finish Daily Tasks: You’ll get new Daily Tasks every day, such as logging into the game, drawing skills, or fighting in dungeons. Completing these daily missions gives you bonus EXP that helps you level up much faster.

  • Join Dungeon Battles: Take part in Dungeon Battles like the Jelly Canyon to earn big amounts of EXP. These battles are one of the fastest ways to reach higher levels and unlock new mutation stages for your Slime.

  • Sell Unwanted Buffs: Always sell buffs that you don’t need. Tap on your Slime to check your equipped buffs,  if you see any with red down arrows, it means they reduce your stats. Selling them gives you more EXP, improves your stats, and helps you unlock the best mutations faster.

  • Use the Pew Pew Slime - Idle RPG Codes: Pew Pew Slime - Idle RPG Codes, giving a big support for earning more resources and even with EXP bonus rewards for quickly levelling up your account.

Choose Your Mutation Class to Progress 

In Pew Pew Slime - Idle RPG, your Slime’s progression depends on the mutation class you choose. Each class represents a unique evolving path that changes how your Slime fights and grows stronger. When you reach level 20, you’ll need to choose one of three mutation paths. Each evolving path gives your Slime special bonuses and abilities.

Mutation Class Type

Mutation

Function

Basic Attack Class

Projectile Mimicry

Increases your ATK SPD, helping you deal more hits in less time.

Pal Type Class

Pal Symbiosis

Boosts your Pal ATK DMG, making your companion much stronger in battles.

Skill Type Class

Skill Mutation

Increases your Skill Critical Rate, allowing your special skills to deal powerful critical hits.

Choose your class path carefully! Each mutation evolving path leads to different strengths and playstyles. Pick the one that fits how you like to play, and build your ultimate Slime mutation for the best results in your gameplay.

Choose Your Mutation Class to Progress 

Pew Pew Slime Best Mutations You Can Build

As you follow your chosen class in Pew Pew Slime - Idle RPG, your evolving path will split into two branches when you reach level 50. Each branch leads to even stronger mutations, giving you access to a total of six powerful final mutations. These are the Pew Pew Slime - Idle RPG best mutations that you can unlock for your battles for each classes:

Basic Attack Class Mutations

Here are the two Mutations in Basic Attack Class:

Best Mutation

Weapons

Increased Abilities

Frost Seraph

Frozen

ATK SPD

Basic ATK

Crit

EVA

Attribute DMG

Extra bullets

Attribute Domain

Earth Spirit

Chaotic Leaf

ATK SPD

Basic ATK

Crit

EVA

Basic ATK DMG

Extra Bullets

Double Trigger

Pal Type Class Mutations

These are the Pew Pew Slime - Idle RPG best mutations for the Pal Type class:

Pal Type Class Mutations

Best Mutation

Weapons

Increased Abilities

Behemoth Guardian

Behemoth

Pal ATK DMG

Pal ATK SPD

DEF

BOSS DMG

DMG RED

Low HP recovery

Pal Crit DMG

Additional Pal

Punk Squad

Can Support

Pal ATK DMG

Pal ATK SPD

DEF

Pal Crit

Timed bonus damage

Extra Bullets

Skill Type Class Mutations 

These are the Pew Pew Slime best mutations for the Skill type class:

Skill Type Class Mutations 

Best Mutation

Weapons

Increased Abilities

Abyssal Tidelord

Underworld

Skill Crit

Skill ATK DMG

DMG RED

Skill recharge SPD

Extra Skill

Double Trigger

Nocturnis Dragonlord

Abyss Swamp

Skill Crit

Skill ATK DMG

DMG RED

Skill Crit DMG

Timed DMG Boost

Timed Skill

People Also Ask

What are Mutations in Pew Pew Slime - Idle RPG?

Mutations are special upgraded versions of your Slime. They give your Slime new looks, stronger stats, and unique abilities for battle.

Who are the best mutations in Pew Pew Slime - Idle RPG?

Best mutations in Pew Pew Slime - Idle RPG are the Frost Seraph, Earth Spirit, Behemoth Guardian, Punk Squad, Abyssal Tidelord and Nocturnis Dragonlord. They are the strongest versions of the slime evolutions.

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Conclusion

And that’s a wrap for our Pew Pew Slime - Idle RPG Best Mutations Guide! Now you know all about the best mutations, how to build them, and how they affect your battles. Each mutation path offers different powers, so make sure to choose your Mutation Class wisely to unlock the strongest version at the end of your journey. So, keep leveling up, fusing your slimes, and evolve your slime for the best mutation for a better gameplay.

Thisara Dilshan
|
Game Writer

With 2+ years of experience, I write guides for puzzle, card, and platformer games. I’m a 22 year old sound engineer student who is being fascinated by sound production and game art, and I enjoy helping players notice subtle details that enhance gameplay. Writing allows me to connect with the gaming community while sharing insights that make experiences more rewarding