Welcome to PackMonster Idle: Trainer Simulator, the ultimate casual anime RPG designed for monster lovers and idle gamers alike!
Step into a fantasy world where over 300 adorable monsters are waiting to be summoned, trained, and evolved. Start your journey with 5,000 free draws and become a legendary trainer in this anime-inspired adventure.



What Makes PackMonster Idle Special
▶ Collect 300+ Unique Monsters
From fierce boss to lovable monsters, every monster has its own charm. Fill your roster and discover your favorites.

▶ Idle Gameplay That Works for You
Busy life? No problem. Your monsters battle, train, and grow automatically, even while you’re offline.


▶ Build a Specialized Team
Create a strategy using professions like Fire, water, leaf, and more. Every monster has a role to play.

▶ Challenge the Arena

Climb the ranks, outwit other players, and prove your team’s strength.

▶ Explore Dungeons & Fantasy Realms
Each stage brings new rewards and growth for your monster squad.

▶ Stunning 2D Animation Art
Enjoy beautiful anime-style visuals and dynamic skill animations that bring every battle to life.

▶ Join Thousands of Monster Trainers Worldwide
“Relaxing and addictive idle RPG.”
“Amazing 2D art and fun monster designs.”
“Great for anime fans and casual players.”

Whether you’re a monster collector, a strategy lover, or just looking for a fun way to pass the time, PackMonster Idle delivers a joyful and deeply satisfying experience.
Download now and start your monster training adventure with 5,000 free draws. Your new monster companions are waiting!