Since the game is native to mobile, you must use one of these methods to run it on a computer:
A classic version titled Monster Master by Moonkey is available to play directly on Kongregate without any download required.
If you choose to use an emulator to play the mobile version on PC, ensure your system meets these minimum specs: Requirement Windows 7 or above Processor Intel, AMD, or Apple Silicon RAM At least 4GB Storage 500MB to 10GB free disk space
Earn boxes to unlock monsters and currency to customize your character. 💻 System Requirements (via Emulator)