In Kerbal Space Program, players take control of the space program of an alien race called Kerbal. You have access to an arsenal of components to build a complete spacecraft based on real aerodynamics and physical conditions. Send your crew into orbit and beyond to discover moons and other planets within the Kerbal Solar System and construct space bases and stations to extend the range of your expeditions. Further improvements of the second part include updated planets and parts, additional mod support, and improved tutorial to help new players get started. The latter will provide a more relaxed learning curve to newcomers - after all, this is literally learning rocket science. For the first time, players will be able to build without the limitations of planetary gravity, enabling larger, and more complex construction projects than ever before - including interstellar spacecrafts. You can also share your experience in a new multiplayer mode!