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.
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.
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Count-driven timing. Choose how many hits per loop instead of guessing note values.
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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.
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Per-slot Decay. Tighten kicks, open hats, or create gated percussion without touching a compressor.
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Embedded drum kit. Get started instantly with built-in kicks, snares, hats and more, or drag in your own samples.
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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.
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Master BPM slider. Global tempo control from slow and swung to machine-gun fast.
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Slot mute & solo. A one-click way to audition layers, build drops, or troubleshoot a busy pattern.
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Project saving & loading. Keep your patterns, tab structure, and mixer settings together in one file.
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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 loading and export with a license key.
- ✓ Full access to all 16 slots, tabs, and timing features
- ✓ Save unlimited projects in the free trial
- ✓ License unlocks loading previous projects and exporting audio/MIDI
- ✓ 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.
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