Exposure to violent visual media leads to increased aggression in short-term scientific studies. Methodologically sound experiments have shown empirical evidence that violent video game contributes to aggressive behavior.
Infographic summarizing various skills that can be gained by playing video games and providing an overview of some of the games we've had in the past and what disciplines they're related to. Games mentioned include Carmen Sandiego, Orgeon Trail, M.U.L.E., Angry Birds, Sims, Quest Atlantis, Incredible Machine, etc. Interesting.