Beta Free to play · runs in your browser
Concert Battle
The Nova Harmony card game, where performance is combat. There's no mana, no attacking face, and no taking turns.
Best on a desktop or laptop with a mouse and keyboard. No account needed; your run saves in this browser. It's a beta, so expect rough edges and balance changes.
You and your rival each plan four beats in secret, then both plans play out beat by beat.
Techniques cost Dissonance, paid by the Resonant who performs them. Push into Overdrive for power, rest to recover, and don't reach the Fall, or your Resonant joins the Void Choir in your rival's deck.
Five slots, five lanes. Neighbours whose frequencies harmonize power each other up.
Fallen and Void Choir Resonants can be Reached and brought back. The ones you rescue in a won match join your collection.
Your nation's beast fights beside you, and evolves only if you give up a rare card for good.
Pick a frequency, shatter six Resonance Crystals, build a deck of 30, and climb six best-of-three concert battles.
A measure, beat by beat
- Plan. Each of four beats holds one action: an Entrance, a Technique, your Echo Beast, or Improvise (discard one, draw one).
- Perform. Both plans resolve together in phases: entrances, Counter, Guard, Strike, Support, Echo. Trades are simultaneous.
- Finale. After beat four, every Resonant that isn't resting strikes the lane in front of it. An uncovered lane hits the Barrier.
- Hold out. Both Barriers start at 30. From measure 9 the Silence presses on both sides, harder each measure.
Controls: click a card, then a slot or performer. 1–5 pick a slot, Q W E R pick the beat, H suggests a plan, Space performs, right-click inspects a card.