Fury 800 (KORG Poly 800 Emu) has been updated recently to V2.0.1. It’s completly free from Full Bucket Music (Donations possible).
Free chaotic monosynth by Newfangled Audio. Pendulate uses a brand new oscillator design to produce sounds different from any other synth. Download from Eventide site.
Surge Synth Team updated the Surge synthesizer plugin (VST3) to v1.7.0 with hundreds of new features and a brand new user interface design.
Surge is free a versatile hybrid virtual synthesizer in the VST3 plugin format for digital audio workstations on Windows, macOS, and Linux.
Voltage Modular Nucleus 2 is right now freely available at Plugin Boutique. This collection of 22 modules and 176 presets is the ultimate introduction to modular synthesis.
Bring some groovy, bassy vibes back from the ‘60s and straight into your music with the free faithful emulation of one of the first monophonic string bass simulators, the Rheem Kee Bass.
Physical modeling (no samples used) of vintage Rheem Kee Bass.
The Fury-800 is a software instrument for Microsoft Windows (VST) and Apple macOS (VST/AU) simulating the KORG Poly-800 polyphonic synthesizer from 1983. It is written in native C++ code for high performance even on “lighter” systems.
Lots of free DX7 sysex files from Bobby Blues to use in hard and software (Dexed, Fm8…)