A deckbuilding roguelike about making matter that cannot exist.

You hold a hand of quarks. Smash them together and a real particle comes out. Stable ones score almost nothing. Unstable ones score enormously — and when they decay they spawn more particles, which score too, cascading down until one hand pays six figures.

But every unstable particle heats the beam. At zero stability the magnets quench and the run is over. Instability is your score and your death. Same number, both directions.

Two rules: quark + antiquark = meson. Three quarks = baryon. Your first run teaches the rest while you play.

• Eight rounds, escalating targets, about 15 minutes
• A shop between rounds: detectors, one-shot theories, heavier quarks
• Pick your beam energy each round — more reach, less margin
• ~50 particles to discover, and an endless mode with its own leaderboard

Mouse only. Plays in the browser — fullscreen recommended. Windows build below.

Every mass, lifetime and decay path is real Particle Data Group data, so the system is deeper than I could have invented. All 24 sounds are synthesised at runtime — the project has no audio files.

Tell me in the comments which particle killed you.

Credits

Particle data: Particle Data Group (pdg.lbl.gov)

Typeface: JetBrains Mono, SIL Open Font License

Engine: Godot 4.7

All audio is synthesised at runtime — no samples, no music library