🌌 Nova Stack
Uncover a layered constellation and match star cards in a seven-slot tray.
Play: The interactive game loads on this page in a modern JavaScript-enabled browser. The complete guide remains readable before it loads.
Controls
Desktop
Click uncovered cards; arrows and Enter select, Z undoes, S remixes, P pauses
Mobile
Tap uncovered cards; use Undo or Remix before the seven slots fill
What is distinct here
Nova Stack combines covered-card ordering with a seven-slot tray. Its constellation theme supports the rule through clear layer depth and symbol labels, while undo and shuffle are deliberately limited tools rather than random escapes.
Rules
- Only cards with no overlapping card above them can be selected.
- Selected cards enter a tray with seven slots; three of the same symbol disappear automatically.
- Clear all 36 cards to win. If all seven tray slots fill, undo a pick or use Remix.
- Every board is assigned from a verified legal removal order, so at least one complete solution exists.
Strategy tips
- Before picking, look for two matching cards already in the tray.
- Remove upper cards that uncover several lower cards, not just one.
- Use Remix with a crowded tray: it returns those cards and rebuilds a guaranteed solution.
What we tested
Every deck is created in triples and layered from a known removable sequence, avoiding a purely random dead end. Tests cover exposure, tray grouping, triple removal, slot failure, undo, shuffle, pause, keyboard access and victory.
Frequently asked questions
Is every Nova Stack board solvable?
Yes. Symbols are assigned along a legal top-to-bottom removal order, guaranteeing at least one full solution.
What does Remix do?
It returns current tray cards to the board, then reassigns all remaining symbols along a new verified solution. Up to three remixes are available per round.
Does the game save personal data?
No. Only the best score is stored locally in this browser; no account or personal details are requested.
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