I’m Rory, the developer at Fat Berry DSP, a small UK plug-in company. We have ten free plug-ins that load in Renoise as VST3 on Windows, and as VST3 or Audio Unit on Mac.
They are Drum Berry, Fidelity, Mutant Brass, Band Practice, Taser, Tremble, FB-60, FB-985, FB-XD and Copy The Dog, covering drums, synths, brass, tremolo and lo-fi character. Each has its own perpetual licence, on up to three machines, and no card is needed.
Download page:
Happy to help if anyone has trouble loading them in Renoise.