Crowded Sky

Take control of the planets and build your own solar system in Crowded Sky! Can you make the orbits work, or will everything collapse into the star?

Your objective in this game is to earn a high score by launching and placing planets into stable orbits and making sure they complete their rotation around the star as many times as they can! Use your mouse and click and drag your cursor on any spot in the system to adjust the orbit of a planet. Let go of the left mouse button to place the planet in the orbit. If it is stable, it will start its rotation, and you will earn points each time it completes a tour. If the orbit becomes unbalanced, the planet may fall into the star or venture far off to the edge of the system. Sometimes planets can merge into each other, or they can crash into each other. But there are other dangers lurking in deep space, and sometimes these celestial neighbours will pay a visit to your system. Comets are a common occurrence and one of the biggest threats to your planets. Before one arrives, you will receive a warning, and its trajectory will be visible to you. These can crash into your planets, destabilize the orbits, and cause havoc! Good luck managing a whole star system; you will need it!

Take a look at our collection of free online Simulation Games next, if you want to feel in control! Have fun!

Developer

Eisen Games developed Crowded Sky.

Release Date

November 6, 2026

Features

• Colorful 2D graphics
• Intuitive controls
• Entertaining and addictive gameplay
• Different planet types

Controls

Use your mouse to play.