Planet Merge cover art
Merge Physics Casual 3–10 min

Planet Merge

Fling space rocks into a gravity well and merge them into suns.

Planet Merge gameplay screenshot
Real in-game screenshot · tap to play

How to play Planet Merge

  1. Drag around the rim to aim, release to fling the next body toward the gravity well at the centre.
  2. Two identical bodies that touch merge into the next one: dust, pebble, asteroid, moon, Mars, Earth… up to a sun and a black hole.
  3. Keep the pile inside the dashed ring — a body poking out for 2 seconds ends the run. Meteor showers add surprise rocks.
  4. Merges fill the stardust meter for a rainbow Nebula (merges with anything) or a Pulsar (blasts small rocks). Golden bodies score triple.

Missions to chase

Every run counts toward missions that pay out XP. Clear a tier to unlock the next one:

  • Form an Earth
  • Merge 60 bodies
  • Score 2,500 in one run
  • Form a Saturn
  • Merge 600 bodies
  • Score 12,000 in one run

Upgrades

Coins you earn buy permanent upgrades for Planet Merge:

  • ⭕ Wide Orbit — Danger ring 3% larger
  • 💫 Pulsar Pack — Start with a Pulsar blast
  • 🪙 Star Bounty — +15% coins from each run

Good to know

  • Free and instant: runs in your browser on phone, tablet or desktop — nothing to install.
  • Session length: about 3–10 min per round, perfect for a short break.
  • Progress saves automatically in this browser: best scores, missions and favorites.

Start playing Planet Merge or browse all Play Hub games.

Today Puzzle: Brain Games app icon

Play Planet Merge offline on Android

Planet Merge is part of Today Puzzle: Brain Games, our free Android app — no Wi-Fi needed, with daily puzzles and check-in rewards.

Get it on Google Play