Our idea is to create an educational game that helps future astronomers to understand and visualize planets and stars. The game consists of two parts, first one is the educational part which aims to explain physics laws, chemistry properties, the reason behind different phenomena, and full educational courses with visualization. It simulates phenomena and collisions in the space to deliver obvious and interesting education. Second, a free roam or a sandbox mode where players can create their own system and to customize the characteristics of a star and build planets around that star based on the existing data then show them the effect of their customization on other systems.