Place cards into a 3×3 grid and unleash chain reactions driven by position and synergy. A roguelike deckbuilder where every placement matters—optimize your layout, build powerful combos, and create explosive, constellation-like scoring plays.

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About This Game

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.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Some audio and promotional materials were created with AI assistance and reviewed by the developer. All core visual artwork in the game is hand-drawn, with a small number of placeholder icons in the current demo to be replaced before full release.

System Requirements

Windows
macOS
    Minimum:
    • OS *: Windows 7 / 10 / 11
    • Processor: Intel Core i3 or equivalent
    • Memory: 2 GB RAM
    • Graphics: Integrated graphics (Intel HD Graphics or equivalent)
    • DirectX: Version 10
    • Storage: 500 MB available space
    Recommended:
    • OS: =
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.
    Minimum:
    • OS: macOS 10.13 or later
    • Processor: Apple M1 or Intel Core i3
    • Memory: 2 GB RAM
    • Graphics: Integrated graphics
    • Storage: 500 MB available space
* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.
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