I notice you're asking for features of VisuStella MZ plugins that are free.
Here's the important clarification first:
VisuStella does not offer free versions of their full plugin libraries for RPG Maker MZ.
Their plugins are sold as part of the VisuStella MZ Starter Pack (or larger bundles) on the official RPG Maker Web store and Itch.io. There is no separate "free tier" of VisuStella MZ plugins. visustella mz plugins free
However, you may have seen:
Absolutely – if you plan to make a commercial game. The time saved in coding and debugging alone is worth far more than the $30–$40 price tag. I notice you're asking for features of VisuStella
The free VisuStella plugins (e.g., Button Common Events, Visual State Effects) can be combined with free alternatives to mimic some premium features. For example:
The complete VisuStella MZ plugin library is not free. It is sold as a bundle on itch.io (by Yanfly Engine) for a one-time fee (typically around $30–$40 USD for the full collection). This purchase includes: Sample / Demo projects that include limited plugin
Why do they charge? Developing high-quality, bug-free plugins for a complex engine like MZ takes hundreds of hours. The fee supports ongoing development and maintenance.
The most important free offering from VisuStella is the Core Engine. Unlike simple plugins that add a single mechanic, the Core Engine rewrites how RPG Maker MZ handles data under the hood.
Why it’s essential:
For any developer, the Core Engine is not just a recommendation; it is practically a standard installation.