Attrattore is a free experimental synthesizer from Creature From The Black, the independent project of developer and musician Filippo Corradin. Instead of starting from a conventional oscillator model, the instrument is built around 36 chaotic dynamical systems calculated in real time.
The result is a synth aimed squarely at sound designers, electronic producers and anyone who enjoys instruments that can move from controlled tones to unstable, organic textures. Attrattore is available as a 64-bit Windows VST3 and standalone application on a pay-what-you-want basis.
Free download: Attrattore is distributed through the official Creature From The Black Ko-fi shop. You can choose a zero price when the product is offered as pay-what-you-want.
What Is Attrattore?
Attrattore is a monophonic synthesizer that turns the trajectories of chaotic systems into audio-rate material. A chaotic attractor follows deterministic equations, but its motion can be extremely complex and sensitive to parameter changes. In a synthesizer, that creates a useful middle ground between a stable oscillator and outright noise.
The instrument integrates these systems continuously in real time, so small changes can reshape pitch movement, timbre and modulation behaviour. It is not a preset machine designed to reproduce familiar analog classics. Its strength is generating evolving tones that feel alive and occasionally slightly dangerous.
At a Glance
- 36 chaotic dynamical systems
- Two oscillator/attractor sections
- FM and ring modulation
- Wavefolder and multimode filter
- Delay and reverb
- Modulation matrix
- Drone mode
- Factory presets
- Windows VST3 and standalone
36 Chaotic Systems as Sound Sources
The headline feature is the bank of 36 mathematical systems. Each attractor produces a different trajectory and therefore a different sonic behaviour. Some settings can settle into recognisable tonal motion, while others generate irregular pulses, noisy contours or unstable harmonic spectra.
This gives Attrattore an unusually broad palette for a one-voice instrument. It is particularly effective for drones, industrial textures, science-fiction effects, abstract basses and transitions that need more movement than a static waveform can provide.
Two Engines, FM and Ring Modulation
Two attractor-based sound sources can interact through FM and ring modulation. Frequency modulation increases spectral complexity by using one signal to modulate another, while ring modulation multiplies the sources and produces sum-and-difference frequencies. With chaotic sources, both techniques can quickly create metallic, bell-like or aggressively digital textures.
The useful part is that the synth can also be kept relatively restrained. A producer can begin with one stable attractor, add a second source lightly and then introduce modulation gradually rather than immediately sending the patch into mathematical weather.
Wavefolder and Multimode Filter
The wavefolder adds further harmonics by folding peaks back into the waveform instead of simply clipping them. It can turn thin signals into denser, more animated material and works especially well before filtering.
The multimode filter then provides a more familiar way to shape the output. This combination is practical: unusual synthesis produces the raw material, while filtering gives the musician a fast route back to a usable place in the mix.
Modulation and Drone Mode
Attrattore includes a modulation matrix for routing movement between parameters. Because the core signal is already dynamic, additional modulation can produce long-form patches that evolve without relying on a conventional sequencer.
Drone mode is especially relevant for ambient, experimental, cinematic and installation work. It lets the instrument sustain without repeated MIDI notes, making it easy to explore slow changes, feedback-like motion and self-developing textures.
Sound-design tip: Start with a simple attractor and low modulation depth. Once the timbre is useful, automate one chaos parameter slowly. Chaotic synthesis becomes much more musical when the instability is introduced deliberately.
Who Is Attrattore For?
Attrattore makes the most sense for producers who value unusual source material. It can be useful in experimental electronic music, IDM, industrial, dark ambient, cinematic sound design and game audio. It is also a strong resampling source: record a few minutes of evolving output, then cut the best moments into one-shots, loops or granular material.
Producers looking for a conventional polyphonic subtractive synth will probably reach for something else first. Attrattore is better understood as a specialist instrument for generating character.
Video Demo
The official Creature From The Black demo below shows Attrattore in action and highlights its chaotic attractor synthesis approach.
Compatibility
- Format: VST3
- OS: Windows 64-bit
- Standalone: Included
- Type: Monophonic experimental synthesizer
- Price: Free / pay what you want
How to Download Attrattore
- Open the official Creature From The Black Ko-fi shop.
- Select Attrattore.
- Choose the available pay-what-you-want amount, including zero where offered.
- Download the Windows package.
- Install the VST3 in your normal VST3 directory and rescan your DAW if needed.
Final Verdict
Attrattore is one of those free plugins that has a clear reason to exist. Its 36 chaotic systems give it a sonic identity that is difficult to reproduce with a standard oscillator section, while the filter, wavefolder, effects and modulation tools keep the experiment usable inside a production workflow.
If your plugin folder already contains seventeen polite subtractive synths, Attrattore brings the guest who starts discussing nonlinear dynamics near the speakers. That is precisely the point.
Download Attrattore for Free
