A 16-slot drum sequencer built for producers who love tight grooves, polyrhythms, and absolute timing control. Sculpt entire songs from one screen, then export pristine audio or MIDI in a couple of clicks.
S.L.O.T. Machine naturally pushes you to experiment—swapping sounds, tweaking Counts and Decays, stacking variations—until you stumble into those happy accidents traditional step sequencers rarely deliver. It especially thrives at polyrhythms: quickly build complex, musical polyrhythms that still feel natural and sit tight in the pocket.
Try it free. Build and save as many projects as you want. When you're ready to unlock loading and export (MIDI + audio), grab a license key and keep every groove.
Personalize with Skins
Choose from our beautifully crafted premade skins, or design your own custom interface. Transform S.L.O.T. Machine to match your studio aesthetic and creative vibe.
Skins aren't just about looks—they're about creating a workspace that inspires you. Whether you prefer the sleek modern feel of Studio Steel, the warm organic texture of Oak, or the bold futuristic edge of Midnight Forge, there's a skin that matches your creative energy.
-
Premade skins included. Four professionally designed skins ready to use right out of the box.
-
Custom skin support. Advanced users can create and share their own custom skins to match any aesthetic.
-
Switch on the fly. Change your skin anytime to match your mood, project, or studio lighting.
A workstation that thinks like a drummer, not a sequencer.
S.L.O.T. Machine (Synchronized Loop Orchestration & Timing) is an intuative, performance-ready, polyrhythmic drum sequencer. Load up to 16 samples, dial in the Count, Beat-Mask and Decay for each one, and let the engine handle rock-solid timing while you focus on the groove.
Every slot has its own Count, Beat-Mask, Volume, Decay, mute/solo, and MIDI channel. Need straight 4-on-the-floor kicks with triplet hats and a snare that lands every 3rd bar? Go for it. S.L.O.T. Machine keeps everything locked to the master tempo so your weird ideas still hit tight.
-
Count-driven timing. Choose how many hits per loop instead of guessing note values.
-
Beat-Masking. Turn individual hits on/off. In an 8 beat loop, you could turn off beats 5 and 7, completely changing the feel of the loop. This is a game changer.
-
Per-slot Decay. Tighten kicks, open hats, or create gated percussion without touching a compressor.
-
Embedded drum kit. Get started instantly with built-in kicks, snares, hats and more, or drag in your own samples.
-
Per-slot MIDI channels. Trigger external instruments, layer hardware, or route drums to separate DAW tracks.
You have unlimited Tabs - each Tab holds it's own 16-slot pattern. With Playthrough mode, S.L.O.T. Machine will walk down the tabs, repeat each one as many times as you choose, and optionally loop the entire sequence. It’s like having an arrangement view built straight into your drum machine.
Studio Grade, rock solid timing
S.L.O.T. Machine is designed to live in real workflows: practice rigs, songwriting setups, and full DAW sessions. Tight clocking, predictable behavior, easy saving and loading, and clean export paths are baked in.
Timing, routing, and export done right.
S.L.O.T. Machine keeps your grooves steady whether you’re running the standalone app for live jamming or the VST3 inside your favorite DAW.
-
Master BPM slider. Global tempo control from slow and swung to machine-gun fast.
-
Slot mute & solo. A one-click way to audition layers, build drops, or troubleshoot a busy pattern.
-
Project saving & loading. Keep your patterns, tab structure, and mixer settings together in one file.
-
Export MIDI + audio. Print stems or MIDI clips and finish the track in your DAW with zero guesswork.
One-time purchase. Lifetime grooves.
Try the full timing and pattern engine for free. When you’re ready to commit, unlock audio and MIDI export with a license key.
- ✓ Full access to all 16 slots, tabs, timing features and Visualizer in the free trial.
- ✓ Create unlimited projects in the free trial.
- ✓ License unlocks exporting Audio & MIDI and gives access to the Beta VST3 Builid.
- ✓ Free updates for the 1.x series
Anyone who lives and dies by the groove.
If you care about timing, layering, and variation more than pretending to be a tape machine, S.L.O.T. Machine was built for you.
While we feel that S.L.O.T. Machine is best used as a Stand Alone App, we understand that many users like the VST3 plugin integration. Therefore, we have compiled a VST3 Plugin version that will be available to REGISTERED USERS ONLY. At this time, the VST3 has not been thoroughly tested, and is only being released as a courtesy to registered users for BETA TESTING to those interested. If you use it, and find any bugs, please report them.
The S.L.O.T. Machine Visualizer
The S.L.O.T. Machine Visualizer isn't just eye-candy. It's a living, breathing extension of your music - a reactive art engine that transforms every groove, pulse, and polyrhythm into motion.
Designed for both clarity and beauty, every mode brings your beats to life in a completely unique way:
Visualizer Modes
-
Beads: Orbit
-
Beads: Edge Walk
-
Beads: Mixed
Special Effects
-
Master Pulse
-
Breathe
-
Neural Chaos
-
Starlight Twinkle
-
Alternating Rotation
-
Colorwave
-
Nebula Drift
-
Neon Sweep
Why it matters
The visualizer isn't decoration. It's a true musical insight tool - a way to see polyrhythms, understand structure, and feel your groove in a whole new way. It turns composition into exploration, and performance into art.
A Visual Instrument
Whether you're producing, experimenting, or just vibing, the visualizer transforms S.L.O.T. Machine from a rhythm engine into an experience.
Complex grooves, beautifully simple.
Polyrhythms can feel intimidating— 3 against 5, 4 against 7, mixed subdivisions, shifting pulses… most tools make you think like a mathematician just to make them work.
S.L.O.T. Machine flips that on its head.
Instead of burying you in grids and fractions, it gives every rhythm its own polygonal loop, each spinning in perfect time with the others.
You don't calculate polyrhythms here…
you see them.
-
Each loop is its own shape
-
Each shape pulses with its own timing
-
Their relationships emerge naturally as motion
-
Complex patterns feel intuitive in seconds
And because the visualizer shows the entire structure moving together, you can instantly understand how your grooves interact— which ones push, which ones pull, and where the magic of overlap happens.
Want 5 against 4?
Done.
How about 7 against 3 against 9?
Easy.
Even wildly asymmetric patterns become playful instead of stressful.
With S.L.O.T. Machine, polyrhythms aren't a puzzle.
They're a playground.
Ready to see what drops out of the S.L.O.T.s?
Download the free trial, load a few embedded drums, and start dialing in Counts, Decays, and tabs. In ten minutes you’ll know exactly why S.L.O.T. Machine wants to be the center of your rhythm world.
No sign-up required. The trial lets you explore the entire engine, save projects, and decide if the workflow clicks with you before unlocking export.
Tutorials & user manual
Video walkthroughs and a full written manual will guide you from “first click” to building complete songs with Playthrough, exports, and more.
Watch the tutorial above to learn how to use S.L.O.T. Machine.
- ▶ Building your first 8-bar beat from scratch
- ▶ Using tabs and Playthrough to create full songs
- ▶ Exporting audio & MIDI and finishing in your DAW