As a kid, I picked up bits and pieces from various video games (including browser games): in no particular order, I learned about basic economics/financial management from Neopets, what nitroglycerine was from The Incredible Machine, and probably a boatload of other things that I can't think of at the moment. (Also, first-person cameras no longer make me dizzy/nauseous as of late, because I've been playing a lot of Portal -- my first game with that viewpoint ever -- lately. That's not really a skill or piece of knowledge, though.)
I also played a lot of edutainment games like Math Blaster and the Magic School Bus games (for instance, one of the latter taught me about volcanoes and why the different types are like that), but I wasn't counting those because they're supposed to teach you things.
I also played a lot of edutainment games like Math Blaster and the Magic School Bus games (for instance, one of the latter taught me about volcanoes and why the different types are like that), but I wasn't counting those because they're supposed to teach you things.