BrainStormer is a free software synthesizer developed by Roazhon DSP. Available format(s): VST, VST3 for Windows 64b.
BrainStormer is a freeware virtual analog synthesizer.
Features:
- 3 stereo oscillators with retrig, phase, wave stretch, stereo dephasing controls.
 - Flexible FM & ring modulation.
 - Filter (LP, BP, HP, Peak, Notch) with dedicated ENV, key follow.
 - 2 LFOs with large frequency range (up to 2kHz), retrig, BPM sync, phase, clipping, independent destination amount controls, self modulation.
 - 2 mod ENVs with ADSR, independent destination amount controls, self modulation.
 - 2 extra modulator sources (wheel, pitchbend, velocity, ENVs and LFOs).
 - 84 destinations for modulators.
 - Panic, main volume, polyphony, note mode, portamento, pitchbend controls.
 - Internal oversampling x2, 100% home-made DSP code.
 - VST3 and VST2.4 (32 and 64-bits versions).
 http://roazhondsp.storm-mastering.com/

