This is just a thing I put together that simulates launching a rocket, but it doesn't have any good looking graphics. I was going for more of a physics project. ANYWAY, press up arrow and down arrow to choose your throttle, or use T to toggle full throttle/no throttle. I left some variables showing so you can see your altitude, velocity, and acceleration (in hypothetical units). Space is about 40,000 units of altitude high. Altitude is a little buggy.