Monster Choir

v1.0.1
English · Music sandboxOpen game on its own ↗

SPUNKY ORIGINALS · MUSIC

Seven monsters. One very unusual band.

A mask is all it takes to give a sleepy monster a voice. Fill seven spots with beats, grooves, melodies and vocals, then listen to the band you have made. Swap a mask, leave a little space or solo one performer: there is no score to chase and no wrong ending.

Choose a mask, find a sound, and see who joins in.

Seven musical monsters on the Monster Choir stage

Build your first choir

  1. Press Start to turn on sound. Drag a mask onto a monster, or select a mask and then choose a monster.
  2. Add parts from different categories. Click a dressed monster to mute, solo or remove its mask. Dragging the mask back to the tray removes it too.
  3. Pull the moon lever to switch between day and night. Your arrangement stays in place, but the sounds and hidden combinations change.
  4. Find a secret combination to watch a 16-second performance. Revisit discoveries on the bonus wall, or copy a mix code before trying another arrangement.

Take the stage

Mouse & touch
Drag a mask onto a monster, or select a mask and then a monster. Select a dressed monster to open its actions.
Place a mask
Focus the game. Use 1–7 to choose a monster, the arrow keys to choose a mask, and Enter to place it.
Shape the mix
M mutes, S solos and Delete removes the selected monster’s mask. L changes day/night, H uses a hint, and Esc pauses or closes an overlay.

A different sound after dark

Seven performers, your arrangement

Layer beats, grooves, melodies and voices across seven monster slots. Mute or solo a part to hear how it fits.

Two stages, forty masks

Day and night each have twenty masks. New parts join on a musical boundary, keeping the eight-second loops together at 120 BPM.

Eight hidden performances

Each mode has four secret combinations. Find one to add its 16-second performance to your bonus wall.

Keep a mix worth returning to

The game saves your latest arrangement, settings, hints and discoveries in this browser. Mix codes let you share an arrangement outside the game.

Leave room for the next sound

  • Begin with a beat and a groove, then add melody and voice. Solo a monster when you want to hear its part clearly.
  • Give a queued change a little over two seconds to join the music. Repeated clicks will not make it arrive sooner.
  • A close-combination message means you are one mask away from a secret recipe. A hint highlights a missing mask.
  • You start with one free hint. Another arrives after 300 seconds of active stage play, up to three; paused time does not count.
  • Copy your mix code before experimenting. It keeps the mode, seven mask choices and mute states, but not discoveries or solo state.

Before you press Start

Is Monster Choir free?

Yes. This browser version needs no installation or account and has no in-game advertisements or in-app purchases.

How do I save my band?

When browser storage is available, the game saves your latest arrangement, mode, settings, hints and discoveries automatically. Clearing this site’s data removes that progress. After reloading, press Start to hear your band again.

Why is there no sound?

Press Start first: browsers require a user interaction before audio can play. Check the game’s master volume, device volume and browser mute controls. Sound pauses while the game is paused or hidden.

How many masks and secret performances are there?

There are twenty masks and four hidden performances in each mode: forty masks and eight performances altogether. Each performance lasts sixteen seconds and can be replayed or skipped.

Can I play on a phone?

The game has touch controls and responsive landscape and portrait layouts. This release was checked in Chrome mobile emulation, including 390 × 844; real iOS and Android devices have not been verified. The game interface is English.

Is there a final level or a win screen?

No. Monster Choir is an open-ended music activity. Try finding a combination, watch its performance, then return to the stage to keep mixing.

Does sharing a mix code send a recording?

No. A code describes an arrangement rather than recorded audio. It includes mode, mask assignments and mute states; it does not transfer discoveries, solo state or messages. There is no multiplayer, chat or leaderboard.