Launch by picking your rocket parts from the menu. Assemble your rocket by connecting the propulsion system, gas cylinder, and capsule. Modify the design for optimal performance. Tap the blast off button to begin your mission. Navigate your rocket using the power slider to regulate power. Watch the propellant level to avoid depleting mid-flight. Pilot through the sky and into the cosmos by pursuing the course indicators. Launch satellites or connect with the orbital outpost to accomplish missions. Practice with different setups to improve your spaceflight performance.