ChowCentaur by Chowdhury DSP - Distortion Plugin VST VST3 Audio Unit LV2
Based on the Klon Centaur, The Klone is a free overdrive pedal plugin that adds character to guitars, synths, drum machines and vocals - RouteNote Blog
Guitar Pedal X - GPX Blog - IK Multimedia Launches X-Gear Hardware Pedal Editions of its AmpliTube Plugin Algorithms - the X-Drive, X-Space, X-Time, and X-Vibe