StarStack

Cosmic Merge Puzzle

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

StarStack is a calm, cosmic merge puzzle where you drop celestial objects into four columns and chain merges toward the ultimate Supernova. HOW TO PLAY Tap a column to drop the current object. When two identical objects land next to each other, they merge into the next cosmic form. Chain reactions happen automatically - each merge triggers a check for more. THE COSMIC CHAIN Eight levels of celestial wonder: Meteorite - Moon - Planet - Ringed Planet - Gas Giant - Nebula - Star - Supernova. When two Supernovas collide, a Stardust Burst erupts, clearing both and rewarding you with bonus Stardust. THREE DISTINCT MODES Classic: Endless play, no timer. Chase your personal best score. Time Rush: 120 seconds, all merges score double. Play fast and precise. Challenge: Every 25 seconds a random cell becomes a Void - plan around the shrinking board. ABILITIES Use Stardust to activate powerful one-tap abilities: - Pulsar: removes the top object from a column - Boost: promotes an object one level up the chain - Void Clear: empties an entire column DAILY ORBIT Return each day to align six orbital nodes and claim your Stardust reward. Up to 60 Stardust per day - no spin wheels, no pressure. COSMIC SHOP Unlock new visual skin sets with earned Stardust. No purchases required - everything is earnable through gameplay. 15 ACHIEVEMENTS Track your cosmic journey from first merge to Supernova master, with Stardust rewards for every milestone. FULLY OFFLINE Zero network calls. No ads, no in-app purchases, no account required. Play anywhere.

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    Information

    Seller
    • Waverly Davenport
    Size
    • 10.4 MB
    Category
    • Games
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Waverly Davenport
  • Developer Website
  • Privacy Policy