Gravity Puzzle
Merge Planets is a captivating 3D gravity-based puzzle game. Drop planet spheres into the gravity well, watch them bounce and roll, and merge matching bodies to create larger stars. Can you master the physics and unlock the ultimate Sun?
Synthesize smaller celestial bodies to advance. Reach the ultimate step and summon the Sun!
Experience stellar visuals and micro-interactions optimized for immersive cosmic play.
Navigate beautiful pause menus and configurations styling programmatically with shader-based glassmorphism directly inside Godot.
Watch occasional meteors traverse the cosmic background, dynamically generated with real 3D trajectories to bring space to life.
Every celestial body utilizes custom rendering shaders displaying glowing rim atmospheres customized precisely to their orbital temperatures.
Everything you need to know about the gravity puzzle simulator.
Drag your finger or cursor left and right at the top of the container to position the current planet. Release to drop it. When two planets of identical tier collide, they will instantly trigger an orbital merge event, forming a single planet of the next tier up (e.g. two Pluto bodies form one Mercury).
If your planet stack builds up high enough to cross the laser danger grid (The Vortex) at the top of the container and remains there for more than a few seconds, the orbital compression field collapses, ending the game. Watch the danger line's pulsing color as a warning.
Every time you successfully merge two planets, you earn points proportional to the newly created planet's tier level. Small merges (e.g. Pluto to Mercury) give minor scores, whereas creating large gaseous giants or ultimately synthesizing the Sun unlocks massive score boosters.
Merge Planets is designed as the premier 3D space alternative to the viral Suika Game. Instead of dropping 2D fruits, players drop and bounce realistic 3D celestial spheres inside a gravity well, complete with custom shader glows and a 10-stage evolution ending with the Sun. Free to download on Android & iOS.
Yes! Merge Planets is 100% free to download and play ($0 USD with no mandatory subscriptions) on Apple iPhone, iPad, and Android devices. Furthermore, the single-player 3D physics puzzle mode is fully playable offline without WiFi or mobile data.
Whenever you complete a game session while connected to the internet, your best score is submitted to our REST API backend. The server automatically detects your country via GeoLocation so your national flag is displayed next to your customized username across daily, weekly, monthly, and all-time global rankings.