Kessler Sky
One-Thumb Orbit Builder

You run Earth's launch pad. Hold to raise the marker through the orbit shells, let go to launch. Two satellites of the same kind in the same shell dock into the next tier up, and every lap they fly pays you.
Get Kessler Sky
optional ads only · iOS 15+ · Android
Questions
How do you play Kessler Sky?
Hold to raise the launch marker through the orbit shells and let go to launch. Two satellites of the same kind in the same shell dock into the next tier up, and every lap they fly pays you.
What is the Kessler part?
Cross two orbits and the satellites collide. The debris keeps orbiting and shreds whatever it meets next, which is how the real Kessler syndrome works and how most runs end.
How far can a run go?
Seven tiers, up to the Gateway, which brings the Moon online and doubles income for the rest of the run. There is also one Daily Sky: the same satellite queue for every player, one attempt that counts and unlimited practice.
Is Kessler Sky free, and is it on iPhone?
Both stores, free on both. It is on the App Store for iOS 15 and later and on Google Play for Android, and the only ads are ones you choose to watch.