What about instructional games?
The New York Times on video games with an instructional content. The article criticizes this phenomenon.
Hundreds of recent video games reward players for shooting villains, vaporizing monsters or solving puzzles. But only one encourages regular and rigorous hand washing. (...) As a result, "I wash my hands a lot more than I used to," said Jillian, who has learned that "if you don't wash your hands one time, that could lead to the flu or any other virus." Like what? "Salmonella, I guess." (...) "In an era where you can't guarantee people are even watching television commercials, getting someone to interact for 15 or 20 minutes is just huge," Mr. Squire said.