About Game

Cosmic Merge is the physics puzzle you'll lose hours to without noticing. Drop a cosmic body into the bucket, match two of the same tier, and watch them fuse into something bigger. Cosmic Dust becomes an Asteroid. Asteroids collapse into a molten Protoplanet. From there the chain climbs through a Moon, an Earth-like world, a Gas Giant, a Sun — and, if the stack holds long enough, a Black Hole and the final Supernova. Eleven tiers. Eleven discoveries. One bucket trying to crush them all.

Stack combos within three seconds to multiply your score up to 10x. Master the danger line before bodies spill over the top. One Pull Down ability — a gravity slam — can crush the stack when it gets dangerously tall. Daily Challenges lock in the same drops for every player on the planet, giving the streak a competitive edge. Every celestial body is hand-drawn in real-time pixels, no two runs are alike, and best scores, discoveries, and streaks save automatically. Built for one quick run before bed — and then inevitably one more.

How to play

Move a finger or mouse across the top of the bucket to aim. A dotted line shows exactly where the body will land. Tap or click to release it, and a new body immediately appears in the UP NEXT queue. When two identical bodies touch, they fuse into the next tier — the full chain runs from Cosmic Dust through Asteroid, Protoplanet, Moon, Rocky Planet, Ice Giant, Gas Giant, Sun, Neutron Star, Black Hole, and finally Supernova.

Trigger another merge within 3 seconds to chain a combo and climb the score multiplier from x2 through x3, x5, and up to x10. Keep bodies below the red danger line — anything sitting above it for more than 3 seconds collapses the entire cosmos. Save Pull Down for emergencies: it is a one-shot ability per run that slams the top bodies downward to buy space.

Controls

• Mouse / Finger: Move across the top of the bucket to aim the drop
• Click / Tap: Release the body
• Space / Button tap: Activate Pull Down to slam bodies downward

Games You Might Like

If the tier-climbing merge loop in this space puzzle keeps pulling you back, merge games on Playgama are packed with the same drop-and-fuse satisfaction across dozens of themes. For the closest match in pure mechanics, Watermelon Game runs the identical physics-based chain reaction — celestial bodies swapped for fruits. Fruit Merge: Juicy Drop Game pushes that same tier-climbing progression through multiple evolution stages with a rare top-tier challenge. For more of the cosmic atmosphere specifically, browse space games to keep the interstellar setting going.