First of all, I think that destructible terrain would be an interesting feature, but not the way that the OP wants. (takes away from the main focus of the game, I think. Not to mention huge RAM-CPU usage and enormous savefiles that would occur because of this) I would be more interested in impact craters. They wouldn't take up too much space in the saves, as they could be defined by a simple set of shape and size parameters. However, what the OP is suggesting is downright absurd in a game like KSP. KSP is about exploration and overcoming engineering challenges, not slinging mud and making big ruts in the ground with your tires. And, yes, I suppose that you could argue that making a rover that can drive through thick mud is an engineering challenge in and of itself, but still, my point stands. Secondly, Warsoul: you do know that there is Google Translate for times when you're not certain if your English is correct, right? The translations between French and English are usually pretty good, I think. Thirdly, I am only posting in this thread because it is yet again at the top of the forum. It's been well established that almost nobody likes this idea. If you are posting with nothing more than another "NO," or criticism of the OP, please don't post. If you don't agree with an idea and it has already been discussed for a reasonable amount of time, you shouldn't bump the thread. Gah! I sound like a moderator!