Build Your Rocket Design rockets using different materials. Each material affects your rocket’s weight and performance. ● Carbon Fiber – Very light and highly efficient , but expensive. ● Aluminum – Balanced weight and cost , reliable for most missions. ● Steel – Very heavy but cheap , reduces fuel efficiency. Plan Your Missions Carefully configure your rocket’s parts and fuel to successfully deliver your payload. Each mission challenges you to make smart choices and optimize your setup for the best results. Unique Planets Each level has a unique planet with different gravity , radius , atmosphere so levels require different solutions. Compete On Leaderboards See how your rockets stack up against other players. Each level has its own leaderboard, letting you compare your rockets and optimize your designs.