Morten has been a programmer forever. He even has some sort of education in the stuff. He’s done embedded systems and mobile phone work. Then he worked on several AAA  game titles, before going freelance.
Thor was a 3D graphics artist, who then became a level designer, who then became a game designer. Then one glorious day he discovered programming. Now he does that a lot.
Oh, we’re glad you asked. A rating of AAA [trippāl’ai] means that a game has a colossal marketing budget. Usually exceeding the development costs.