K Brown Synth Plugins

All are free - download the plugins here :
ln5.sync.com/dl/18ec70c20/szsd3fkp-eq73e36d-jgwpdqw5-95kd5pq2
The individual folders within the main folder also contain the actual FlowStone (or Synthmaker) schematic files (.fsm/.osm), screenshots and in many cases the owner's manuals for the hardware synth the plugin was inspired by.
The "Download All" button on the first page doesn't work with a lot of computers because the zip file is enormous, but Sync doesn't provide a way to remove it, so plugs have to be downloaded individually.
E-mail me if your virus-scan software erroneously flags any of the Sync folders, and I can send you the desired .dlls directly.

Plugins based on modular synths now have a separate download link:
ln5.sync.com/dl/6df6459a0/fgi4qsux-gidapnrt-ipcnb39d-hu77dig3
The modulars are shown in their own section at the bottom of this page.

For those who don't have a Digital Audio Workstation or any kind of plugin host on their computer, and are just curious and would like to play around with these, I highly recommend Hermann Seib's free little applet, vstHost available here:
www.hermannseib.com/english/vsthost.htm
You won't even need a MIDI keyboard connected to your computer.

All are Windows-only; they cannot be made Mac-compatible because they were made with FlowStone (or Synthmaker [not SynthEdit]), which doesn't support it. The plugins at the top of the columns are available 64-bit and 32-bit; those below the indicated dividers are 32 only.
To use those that are still 32-bit on a 64-bit system, there's jBridge : jstuff.wordpress.com/jbridge/
and 32Lives : www.soundradix.com/products/32-lives/