Race through the stars with your Abacus-Powered Spacecraft!
* Level by level abacus tutorial from no experience to mastery
* Self correcting hints system
* Suitable for ages 4-99
* Play and compete with your friends!
Race through the stars with your Abacus-Powered Spacecraft!
* Level by level abacus tutorial from no experience to mastery
* Self correcting hints system
* Suitable for ages 4-99
* Play and compete with your friends!