VCV Rack Pro

This comes up in my search with the "Free" filter selected yet it has a price on it.

i just use the vcv rack 2.0 free anyhow. i couldnt imagine needing whatever must cost 150 bucks extra, although i know lots of people put lots of time and effort into it. i do love the shit out of vcv rack 2 though.

There is a free version that is standalone only and a paid version that offers a VST plugin and support.