Free Virtual Instruments and Effects for Windows
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Solcito Musica VSTs/VSTis are developed with Flowstone. Some functions of these VSTis may have been taken from the Flowstone library, with certain modifications.

Synteacher 2.1
Didactic V Analog Synth

Synteacher is a virtual synthesizer for teaching and self-learning purposes.
It provides the basic concepts of all types of synthesizers and particularities of analog synthesizers.
It has a panel that shows and hides controls according to each onscreen instruction text that the user follows, from an empty panel at beginning to a full synth panel when read advanced instructions.
Spanish and English languages available.

Available as VSTi and Stand Alone app 

SuperTron 6.1 
Step Modulation Analog Synth
Virtual Analog Synth with retro architecture for vintage and modern sounds.
Features for live performance and multi-instance midi control.
Suitable for arpeggios, bass, pads, atmospheres, solos, leads, noisy sounds, electronic drums, etc.
"Vintager" effect that simulates oldering of oscillators. 
Step modulators with 4 scenes for each preset.
Onscreen editable text guide stored in each preset.
Pop-up fast help by hover mouse on all controls.

Available as VSTi and Stand Alone application. Both include a Tutorial Preset Bank to learn all about this synth.

 Toum! 1.21
Kick-Tom-Percussion-Bass Synth
Toum! is a virtual synthesizer to design kick, tom, timbal, percussion and bass sounds. The user can use the include presets or make their own analog, acoustic and electronic drums, and EDM bass synth sounds. Also can be designed snares, clap, hats and certain FX sounds.
Toum! has a virtual analog structure and a small phase modulation component.

The user can load a tutorial preset bank with onscreen guidance text. It is included in the download package.
Listen Toum!
VST2 32-bit and 64-bit

 Arido 3.33 
Additive Synth
Arido is an additive synthesizer with a simple FM feature and a subtractive filter.
It includes a polyphonic driver to generate variety of timbres. That is, a distorter that works on each note separately. This synth allows make sounds like ambient, bass, pads, organs, distorted, nature, emulations, etc.
It brings on-panel help, MIDI Learn and pedal switch functions.

 SuperSonico 7.8
Virtual Analog Synth

SuperSonico is a virtual analog synthesizer. 
This synth is suitable for classic analog sounds, strings, bass, brass, leads, organs, atmospheres, pads, drums, emulations, toon sounds, etc.
Its Sub-Oscillator includes an optional single low octave that is repeated along the keyboard. When doing a click on some controls or zones, it will appear a contextual help

Download SuperSonico 7.8 VSTi Full Free for Windows
VST2 32-bit and 64-bit

Crio 2.0 32- bit 
Step Modulation Synth

Monophonic Analog/FM/Ring Modulation synthesizer to make arpeggios, bass, solos, leads, FX-style sounds, to be used at studio or live. Minimal controls, maximum functionality. It brings facilities to drastically modify the sounds on the fly, while playing. The LFO has special functions for rhythmic uses, such as quantization of waveforms synchronized with tempo. The user must use the Modulation Wheel to check the importance of the modifications that can be done at live.

Free Download Crio 2.0 VSTi

Additional Free Preset Bank for Crio 2.0:
Free Download New Features Crio 2.0 Preset Bank

Vintager Toy 1.1 32- bit
Aging sound maker 
It is a VST plugin that modifies the sound to make it sound like on old equipments. It can be used over a mix or over an instrument to give it vintage warmth.