The safest "free" option is the official free trial available on the developer's website. It allows you to use the full engine for 30 days without entering a product key.
The screen flickered, and he saw himself—rendered in perfect 16-bit detail—trapped in a small, windowless stone room on the screen. The "Villager" looked at the camera and smiled. "Don't worry," it typed. "The trial version of your life has just ended. Now, we play for keeps." rpg maker mz product key free fix