Reactrom - The metronome of matter

Build. Sync. Listen.

Reactrom is a rhythmic factory puzzle where every atom moves on the beat.

Place machines, program the flow, and watch your reactor perform like an

instrument — keep matter in time, or watch it decay.

• 7 worlds, 140+ hand-crafted levels

• A factory you can LISTEN to — each tile plays a note on the beat

• Chemistry as texture: bond, crack, polymerize, fractionate, purify

• Playable in your browser — no install

• Shared-solution GIFs: export your run and brag

Watch a clip with sound on. That's the whole pitch.