A very interesting article appeared on polygon.com about Kerbal Space Program. It’s not your regular article about the game, but more about how it came to be, and a history of Squad, the company that has created this masterpiece. And how one man’s dream came to be. Originally it wasn’t even supposed to make any money, it started as just a side project. I didn’t even know Squad is originally a marketing company (and apparently still is !).
You can find it at http://www.polygon.com/features/2014/1/27/5338438/kerbal-space-program