Planet Clicker is an incremental clicker game with a space colonization twist. Instead of clicking cookies or gold coins, you click a planet to produce energy units — a resource you funnel into progressively powerful upgrades.

The game starts small on Earth with basic options like campfires and farms, but the scope expands dramatically once you save enough energy to unlock Mars and eventually Venus.

What keeps players coming back is the satisfaction of watching numbers climb and entirely new upgrade tiers appear. Developed by Coltroc and originally released on the Scratch platform in March 2020, Planet Clicker runs as a lightweight HTML5 game in any modern browser.

There are no accounts to create and no apps to install — just open the page and start clicking. If you enjoy idle tapping games with a clear sense of progression, Planet Clicker offers that same loop at a planetary scale that feels genuinely rewarding to push through.

Planet Clicker uses one-button controls. On desktop, left-click directly on the planet displayed on screen to generate energy. On mobile devices, tap the planet instead. To navigate between planets once you have unlocked them, use the arrow buttons at the bottom of the screen.

The upgrade shop sits alongside the planet view, where you spend accumulated energy on production boosts. Your goal is to produce as much energy as possible and use it to colonize three planets in the solar system: Earth, Mars, and Venus.

Each planet has its own set of upgrades, and unlocking a new planet requires hitting a specific energy threshold. There is no fail state or game-over screen — Planet Clicker is an open-ended incremental game where progress itself is the reward.

Every click on Earth earns you 1 energy point to start. Once you reach 20 energy, the shop opens up and you can upgrade your click power so each tap produces more.

After a few hundred energy, automatic sources become available — the first is the campfire, which generates 1 energy per second on its own. From there, the upgrade tree branches into farms, power plants, and more advanced production buildings.

Once you accumulate enough energy from Earth, you can purchase Mars through an interplanetary energy transfer. Mars introduces upgrades like solar oil, coal, nuclear power, and alien technology.