Planet Clicker puts the entire solar system at your fingertips — one click at a time. This free browser-based clicker game challenges you to generate energy, invest in upgrades, and expand from Earth to Mars and Venus.

Originally built on Scratch by developer Coltroc, it has become one of the most popular idle games you can play online with no download required. Jump in on PLRun and start building your interplanetary energy empire right now. 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.