Mverb is a free reverb VST, Audio Unit, Ladspa plugin developed by Martin Eastwood Audio. Compatible OS(s): Windows, macOS, Linux.
MVerb is a free, studio quality, open-source reverb. Its release is intended to provide a practical demonstration of Dattorro’s figure-of-eight reverb structure and provide the open source community with a high quality reverb.
http://rekkerd.org/martin-eastwood-audio-free-plugins/