A counting space adventure

Rocket CountStar Hopper

Fly your rocket across the galaxy and help sixteen alien friends. Scoop up stars, hop along the number line, and fill space stations to make ten!

Drag, tap or use arrows to flyPress numbers to pick a gateSpace to hop

Galaxy Map

⭐ 0

Hangar

⭐ 0

Sticker Book

Mission complete

For grown-ups

Practice adapts automatically: each fact is tracked on its own, missed facts come back within a few turns, and the next skill unlocks once the current one is solid. Helpers (outlined slots, hop dots) fade as your child gets it right.

Skill ladder

Every fact

Not yetTrickyLearningGetting itSolid

Settings

Practice level

Rocket parked

Paused

Your pilot is waiting in orbit.