Hello, I bought this game just a few days ago after I downloaded the demo on steam and i can say it is absolutely amazing and quite addictive. After going through the training 2 times (both demo and full game) I started building my own rockets and planes. My first achievement was putting a satellite on the orbit around kerbin after that I managed to design and my own probe and rocket and fly it to the Mun and after that to Minmus where i left it in orbit (took me quite a few tries and amusing failures caused by bad staging forgetting to decelerate time etc.). Currently i am trying to put a Kerman on the moon and it is proving to be a quite difficult task. Almost did it yesterday but again i failed to decelerate the time and smashed the rocket into the Mun. The rocket I am using to launch the missions is pretty unreasonable as well. It is like 30th iteration on the design which i started just to see if it will fly (many explosions and dead Kermen happened before this). Not the most efficient design but fun to look at during launch. I also build a space plane that can fly almost 2/3 around the Kerbin before it runs out of fuel. I have still some problems with it though, like for example fuel is not pumped equally out of both sides (plane has separate fuel tanks for left and right side). For some reason when right engine run out of fuel there were still 50 units on the left side. I guess i will just connect both fuel systems that should solve the problem. Also i cannot figure out how to make the jet engine run above 20 km as they will always flame out at that altitude sending the aircraft into a deadly flat spin because one engine always works a split second longer. Overall this must be the best game ever made infinite replay value, always challenging and hilarious, also Kermans are super cute I love the faces they make during the flights..