Oops, sorry for not replying — I didn’t see your mention for some reason! Yep, KSP is an amazing game. You do indeed have to hit escape velocity, from a planet 1/10th the size of earth but with equivalent acceleration due to gravity, and yes you have to learn orbital mechanics to rendezvous, or get to other planets. Highly recommended, but watch out — there’s a steep learning curve but once you get it it sucks you in :)
Oh, and the fan community is amazing. So many tutorials, fan videos and mods. Example:
Man, I really should get Kerbal Space Program because it’s one of those games that I want to have played, if that makes sense? The problem is I already have a pretty hefty backlog of games as it is which makes it hard to justify the purchase.