KNOBOXX

A multiplayer groovebox by Shape Noise

Make beats with your friends. Live.

Three boxes, one clock. Invite your friends, grab a box each and jam in sync from anywhere. Everything stays in key, so it always sounds good. Then post the clip.

122 BPM · A MIN
SB-1Squelch Box
KB-1Knock Box
HB-1Haze Box

Hit play, then switch boxes on and off. In the game a friend is on each one.

1

Open a jam

One click hosts. Invite friends straight from Steam.

2

Grab a box

Bass, drums, chords. Everyone's knobs move live on everyone's screen.

3

Clip it, post it

Record the jam or cut a vertical clip for TikTok, Reels and Shorts in one press.

The boxes

Each one is its own instrument, with its own sound engine built from scratch. Patch them together with the Mod Box.

SB-1

Squelch Box

Acid bass. A screaming diode ladder filter, accent, slide and drive. The sound of a basement at 3am.

KB-1

Knock Box

Analog drums. Kick, snare, clap, tom and hats, each voice with its own shaper, filter and effects.

HB-1

Haze Box

Chords and pads. Supersaw, FM bells and strummed voicings. Press one key and it's always in key.

MB-1

Mod Box

Four LFOs and a patch grid. Make any knob on any box breathe, wobble or stutter.

Built for jamming together

Five years in the making

It started as MusicBox, a music toy built in Unreal and developed live on stream. Five years and a lot of jams later, it became a rack of instruments you play with your friends. Same idea: music is better together.

Watch the old streams

Get in the beta

We're inviting players in small groups. Drop your email and we'll send you a key.