This achievement is not a screenshot of an actual achievement, but more a tale of many emotions.
The game is Kerbal Space Program. The moment I played the demo of the game I was hooked, and almost immediately bought the game. I also immediately found out that this is not an easy game. The way the game handles the science part is fantastic, and extremely accurate to real life. Playing Kerbal Space Program can really indeed teach you proper orbital mechanics and rocket science.
With all the being said, I set out on my quest to conquer the closest celestial body called Mun (which is like the moon, maybe a bit closer to the planet though. After playing the game for over 20 hours I finally completed my first successful Mun landing AND return of the space craft. I was overjoyed! I felt like a bloody rocket scientist and it was awesome.
But this achievement was quickly overcome by the moment I had my first successful, unassisted orbital docking maneuver. The whole ordeal took me like 2 hours of planning, calculating, and extremely precise burns. I was a stressed out wreck when the two space craft closed on each other. The moment they docked though, I literally screamed out loud. It was a crazy feeling. It sounds really stupid, but it felt like I conquered a part of a game that most people found almost impossible. It was glorious.