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Planet Clicker

Generate energy, buy upgrades, and terraform the solar system one planet at a time!

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Frequently Asked Questions about Planet Clicker

What is Planet Clicker?
Planet Clicker is a free online incremental clicker game where you click a planet to generate energy. Spend energy on power upgrades like Solar Panels, Wind Farms, Nuclear Reactors, and Fusion Cores that produce energy automatically. Each planet has an energy goal, and reaching it terraforms the planet from barren rock into a living green world.
How do I unlock new planets in Planet Clicker?
Every planet has a terraform goal shown on its progress bar. Energy you generate while on a planet counts toward that goal. Once the bar fills, the planet is terraformed and the next world unlocks: Earth, then the Moon, Mars, Venus, Europa, and finally the exoplanet Kepler-442b. Later planets multiply all your energy production, up to 32x.
Is Planet Clicker free to play online?
Yes! Planet Clicker on PlayBrain is completely free and runs right in your browser. There are no downloads, no sign-ups, and no paywalls. It works on desktop, tablets, and mobile phones, and on desktop you can press the space bar to click even faster.
Does Planet Clicker save my progress?
Yes. Your energy, upgrades, terraformed planets, achievements, and prestige count save automatically to your browser every 10 seconds. Planet Clicker also pays offline earnings: when you return, your power grid awards up to 8 hours of energy generated while you were away. Clearing browser data resets progress.
What is the New Solar System prestige in Planet Clicker?
After terraforming all six planets you can launch to a New Solar System. This prestige resets your energy, upgrades, and planets, but grants a permanent +100% production multiplier every time. Stacking prestiges is the fastest way to reach the biggest numbers and finish the achievement list.

About Planet Clicker

Planet Clicker is a free online idle clicker game about powering and terraforming the solar system. You start on a barren Earth, clicking the planet to generate energy by hand. Invest that energy in an expanding power grid, from Solar Panels and Wind Farms to Geothermal Plants, Nuclear Reactors, Fusion Cores, and eventually a Dyson Swarm, and watch your production climb even while you are away thanks to offline earnings. Every world has an energy goal: reach it and the planet visibly terraforms from dead rock into a green, living world, unlocking the next destination. Travel from Earth to the Moon, Mars, Venus, the ice moon Europa, and the distant exoplanet Kepler-442b, each multiplying your energy output. The planet clicker game layers achievements, a planet selector, and a New Solar System prestige system with permanent production boosts on top of the classic incremental loop. It is an easy game to start and a hard one to put down, playable free online in any browser with no download required.

How to Play

  1. Click or tap the planet to generate energy. On desktop you can also press the space bar.
  2. Spend energy on upgrades: click upgrades boost energy per click, while generators like Solar Panels produce energy every second.
  3. Fill the terraform bar to transform the planet and unlock the next world, which multiplies all your production.
  4. Switch between unlocked planets with the planet selector and unlock new upgrade tiers as you travel deeper into space.
  5. Terraform all six worlds, then launch a New Solar System to prestige for a permanent +100% production boost.