Orbiter, like magnetic pointed out, is probably what you're looking for! That having been said, I plan to introduce spacecraft that can be controlled by the use

Orbiter, like magnetic pointed out, is probably what you're looking for! That having been said, I plan to introduce spacecraft that can be controlled by the user in a realistic manner at some point, although I want to get the physics (thrust, attitude control and so on) right before introducing this feature. If you check back in a couple of days there will be a simulation of the up and coming Dear Moon mission (the plan, to send a bunch of artists in a free return trajectory around the Moon, concocted by a Japanese billionaire that will be executed by SpaceX).