Kerbal Space Program/YMMV

• Alternative Character Interpretation: Jebediah Kerman is the person that programmed the Space Core.
• Memetic Badass: Nothing scares Jebediah Kerman.
• Self-Imposed Challenge: Making ridiculous rockets, making manned ballistic missiles, making space shuttle equivalents, spacecraft that look like specific patterns, achieving orbit, reaching relativistic speeds, getting a huge and completely pointless concrete cube into orbit, landing on the Sun, landing on the moon, landing on the other tiny moon, etc. As the game has grown in scope, so has the scope of the challenges. For example, the so-called "Jool-5" challenge, to send a single vehicle from Kerbin (often assembled in orbit, but sometimes launched in one piece by an even bigger rocket) that can visit and drop a lander on all five of Jool's moons and come back to Kerbin.