[ninkendo]

My favorite moment is when I first got a spaceship big enough to land on Laythe (the earth-like moon of KSP's equivalent of Jupiter.) It was my first time doing a transfer orbit to Jool so I didn't really know what to expect other than that Laythe had about 85% of Kerbin's gravity... so if a replica of the ascent stage could get into orbit around Kerbin, I should have no problem taking off with it from Laythe so long as I could land with that stage intact with most of its fuel.

After a long mission to get there, "aerobraking" in Jool's atmosphere to get into a capture orbit, orbiting Laythe, landing, planting the flag: I realized I forgot to build a ladder on my spaceship to get back into it.

Sure, I could temporarily cheat and turn off gravity long enough to get into the ship, but that would be too easy...

So I staged a rescue mission to recover my kerbal, this time requiring a spaceship that not only had a ladder but was large enough to fit two kerbals instead of just one. I sent it on its way, and even docked with the orbital component of the original ship to combine fuel resources, and landed within a few hundred yards of my old kerbal. I had to leave a weight on the keyboard on the shift and W key for 15 minutes or so while he walked towards the new ship. I took off, rendezvoused with the orbiting stage, escaped orbit, and slingshotted off the orbit of another moon to get me back to Kerbin with just barely enough fuel to make it, but I made it just the same.

I really love this game.