Free VSTI - Crisalys

Developer: Max Synths

From the developers website:

“Crisalys is a software synthesizer characterized by a powerful audio engine which can work up to 192Khz. The three oscillators are driven by custom waveforms designed specifically to grant top quality sound in any situation. Each oscillator has built-in FM, Ring Modulator and Cross Modulation options controlled by three separate internal LFOs. The Ring Modulator can achieve sound characteristics that can go beyond the common sonorities of this effect, thanks to an internal custom circuit which has been developed for this purpose.
The audio path continues through two multifilters which can operate as state variable filters, analog emulations or in EQ mode. The modulation section offers, in addition to the classic controls (modulation wheel, aftertouch, velocity, etc.), four LFOs, two aux envelopes and two step LFOs which can be used as modulation sources to create atmospheric pads, control the filters, create rhythmic sequences and so on. Each LFO has a special "Quantize" control which can be used to introduce a small (or huge, if turned fully clockwise) variation to the LFO wave and sync speed. Used on pads this can produce interesting effects, adding some granulosity to the sound.”

Get it here:

http://www.maxsynths.com/vsti_crisalys.html

Free VSTI - SL DRUMS 2

Developer: BeatMaker

From the developers website:
“SL Drums 2 is a free VST drum machine, which with a single panel in the purest style drum-pad lets you create beats a fast and uncomplicated configuration. 8 pads to launch your rhythms, each with its own volume control, pan and release, SL Drums 2 is perfect for capturing ideas immediately.

New interface.
 59 standard stereo kits and 59 multi-outs.
 44 new kits produced by Coldman Beats.
 450+ drum samples.
 Each pad has its own volume controls, pan and release. Volume, pitch and reverb style analog overall effect (not including reverb in multi-out).
 Ultra low CPU usage.
 Easy to use.
 100% royalty free
Compatible with the most popular DAWs on the market: Ableton Live, Cockos Reaper, Steinberg Cubase, FL Studio, Traktion, Mixcraft, Sony Acid, Presonus Studio One, Cakewalk Sonar & Apple Logic Pro.


Get it here:

https://beatmaker.xyz/sl-drums-2/

Free VSTI - 4Front (sampled Bass)

Developer: George Yohng

4Front Bass is a small single sound instrument without any settings that reproduces a timbre of a bass guitar. It is available as VSTi for Windows, and as an AudioUnit, VSTi and RTAS for Mac (see enclosed readme file).
This instrument is small on memory and CPU usage and was found useful by many users and software developers as a plug&play bass  guitar module which does not require any configuration or adjustment.
Though this goes without saying for professional users, I still had a frequent question on how to use this plugin from people, who are not familiar with this technolog. One should note, that to make use of this software a plugin hosting software is necessary, such as Topten Cantabile software. A MIDI keyboard is also preferred, as it is something almost essential to create a computer music these days.

Get it here:

http://www.yohng.com/software/bass.html

Free VSTI - Atlantis

Developer: Jeremy Evers

From the Developers website:
"Atlantis consists of Atlantis Synthesizer, a VST instrument, and Atlantis Filter Delay, a powerful VST effect plug-in.
Atlantis Overview
3 true stereo morphing oscillators, with independent width, phase, spread, chorus, tuning, volume, envelope and panning feed into a pair of filters (with standard algorithms and many unique new ones), a shaper (distortions and beyond), and a simple room modelling multi-tap filtered delay system with another pair of selectable filters. The routing of the filters and shaper can also be switched into a variety of configurations for further flexibility.
All the standard waveforms you would expect (sin, square, triangle, saw, noise) - and you can also import any waveform you like. Simply add a .wav file with the waveform you want to hear to the c:\chips folder - stereo or mono, any samplerate or bitdepth you like, and Atlantis will let you use it for oscillators and LFOs. Samples are upsampled into high resolution wavetables.
Every slider parameter can be controlled by any modulator. LFOs, Envelopes, MIDI Control Data, the current note, velocity, or combinations of them can be used to modulate your sounds into "expressive organic creations".
The synth also offers selectable Polyphonic, Monophonic, Portamento and Arpeggio modes."

Get it here:
http://jeremyevers.com/atlantis/

Free VSTI - DSK Darkness Theory 3

Developer: DSK Music

This is a great plugin for creating dark ambient sounds.

From the developers website:
"– Ambient textures and pads
– 3 advanced OSC whit 72 waveforms
– octave and pan selector
– Amp. envelope and micro-detuner
– 3 HP/LP advanced pole Filter
– 3 LFO whit output routing
– Midi automation
– Velocity response
– +32 presets
"

Get It Here:
http://www.dskmusic.com/dsk-darkness-theory-3/

Free VSTI - DSK AcoustiK KeyZ

Developer: DSK Music

From the developers website:

"– 3 piano type: Grand Piano, Concert piano P & Concert Piano F
– Velocity response
– Amp. envelope and micro-detuner
– HP/LP Filter
– 2 Fx (reverb & flanger)"

Get it here:
http://www.dskmusic.com/dsk-akoustik-keyz/

Free VSTI - KRUUD

Developer: Xenobioz

Versatile free soft synth.

Get it here:
http://www.xenobioz.com/2013/01/kruud-10-released.html

Free VSTI - Phat Bass

Developer: Dream Vortex Studio

“This is good for producing those rich deep basses of the 70's analogue synths, There are two saw wave oscillators and a detune control that simultaneously sharpens one oscillator and flattens the other to get a fat sound".

Get it here:
http://www.dreamvortex.co.uk/instruments/

Free VSTI - Aquestone (Japanese vocal synth)

Developer: Aquest

Aquestone is a great sounding Japanese, monophonic vocal synth. It creates a singing voice from basic midi information!

[From the developers site

Aquestone is the Software synthesizer, which was developed to make people enjoy by playing real time singing performances. This software can cope with VSTi plug-in and, has the capability to output singing voice tone from MIDI information and text lyrics. We regard "real time" as the most important issue and this software runs with playing MIDI Keyboard in order to enjoy Live Performance. Of course, you can feed the data in advance.

- Singing Voice synthesis from basic MIDI information.
AquesTone does not need special MIDI information. You can enjoy the singing voice with text lyrics ONLY.
- VSTi plug-in
VSTi plug-in You can use various DAW software, which you are used to.
Also, you can connect optional effect, such as echo or reverb.
- Dynamic position change of the lyrics
You can change the position of the lyrics by forwarding and rewinding during the performance.
- Note Off lyrics
Can assign lyrics to the Note-OFF event (release event) for more intuitive play.]

Get it here:
http://www.a-quest.com/products/aquestone_en.html