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Planet Merge

Planet Merge

Developer:
AZGames.io
Released:
17 August 2026
Technology:
HTML5
Platforms:
Browser (desktop, tablet, mobile)

Planet Merge is a cosmic puzzle game where you help Sputnik achieve his dream of becoming the Sun, one strategic merge at a time.

How Small Planets Collide to Form Giant Planets

The basic idea of Planet Merge is simple. When two identical planets collide, they merge into a bigger one. Drop a planet into the bubble and gravity takes over pulling things into each other, sometimes kicking off unexpected chain reactions and racking up bonus points along the way.

Sputnik's journey includes ten unique celestial bodies to unlock, ranging from tiny starter planets to huge worlds on the verge of becoming Suns. The more merges you pull off, the bigger the incoming planets get, meaning that the space inside the bubble shrinks with every round. “That’s what makes the difficulty curve of Planet Merge feel natural, as it forces players to think several moves ahead.”

What's so special about Planet Merge?

The USP of Planet Merge is its fusion of strategic depth with charming visuals. Each planet is given a personality of its own, complete with expressive faces and playful smiles, softening the pressure of a game that actually demands sharp thinking.

The bubble's limited space is the real core challenge. Let a single planet slip past the boundary, and the run ends instantly. That single rule forces every player to weigh big, satisfying merges against the need to keep enough breathing room for whatever drops next.

In addition to pursuing a high score, Planet Merge offers an achievements system that provides players with additional goals to pursue beyond surpassing their personal best, enhancing the sense of progress in each session.

Planet Merge

Mastering the Drop: How to Play

The objective in Planet Merge is simple: continue merging matching planets into larger bodies while ensuring everything remains within the bubble. In practice, the location where you release each planet is equally important, as it determines how objects will collide once gravity takes effect.

A well-aimed drop can set up a useful collision or line up matching planets for a merge on your next turn. A careless one, on the other hand, can eat up precious space and make future merges far harder to pull off. But as the celestial bodies get bigger, the available room keeps shrinking, forcing smarter decisions with every single move to keep your run alive and your score climbing.

Easy Controls, Real Strategy

Planet Merge is refreshingly simple to control, so players of all skill levels can enjoy it:

  • Mouse Drag: Point and click the planet and release.
  • Mouse Release: Shoot the planet into the bubble.

With only two things to learn, players can concentrate on the strategy and not battle with complex controls.

Final Thoughts

Planet Merge strikes a rare balance between chill, casual fun and actual strategic depth. Adorable planet designs, satisfying merge mechanics, and a slowly ramping difficulty curve make it a must-play for puzzle-merge fans. Try it out and help Sputnik get as close as possible to finally becoming the Sun.

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