
Chart your destiny among the stars—
Place cards onto a 3×3 cosmic grid and harness spatial positioning and card synergy to trigger massive chain reactions. Astronine is a roguelike deckbuilder that fuses spatial puzzle-solving with familiar poker mechanics. In this calculated interstellar journey, every placement matters. Optimize your layout, refine your build, and create explosive, supernova-like scoring miracles!
Ditch the convoluted rulebooks—your common sense is your greatest weapon! Within the tight 3×3 grid, connect cards horizontally, vertically, or diagonally to form classic poker hands (Flush, Straight, Three of a Kind) and trigger cosmic resonance. Exact numerical order doesn't matter; your only focus is finding the optimal global layout.
Basic number cards are just the beginning. The universe hides reality-bending cosmic forces waiting to be collected:
Elemental Foundations: Utilize the four elemental suits—Water (♣), Fire (♥), Earth (♦), and Wind (♠)—to establish the core of your Flush-based builds.
Constellation Resonance (J/Q/K): The twelve Zodiac signs manifest as beautifully hand-drawn face cards, triggering game-changing synergies.
The Ultimate Miracle (Joker): Extremely rare Planetary trump cards! Place just one at the center of the grid to shatter standard rules and ignite a massive, 8-way full-screen chain reaction.

Navigate randomly generated star maps where every run offers a completely new challenge:
Interstellar Registry: Spend Stardust to purchase game-breaking passive items (Relics) that make your scores grow exponentially.
Observatory: Sublimate (upgrade) your core cards, or precisely forget (remove) useless space junk from your deck.
Deep Space Anomalies: Confront Elite encounters with spatial hazards—like grid-devouring Black Holes or Twin Pulsars that restrict same-suit connections. Rely on your macro-strategy to break through!

Enjoy a pure, unhurried battle of wits. Featuring a clean, minimalist UI paired with a dreamy, synth-driven stardust soundtrack. There are no timers pushing you to make a move—just the quiet sound of placing your cards in a solitary match against the universe.