Freeware - Dixon Beats DB-1 Synth VSTi Plugin

https://www.dixonbeats.com/products/db1-vst-plugin

"DB-1" is inspired by the legendary Casio SK-1 that was originally released in 1985. The overall design is heavily inspired by the SK-1 with the sliders and buttons being modelled in the original 1980s Casio style, but we have added our own twist to make the design current while not losing that nostalgic feel.