I played with toys until 1st grade and then:
1st grade - Roller Coaster Tycoon
2nd grade - Crazy Arcade
3rd grade - Maplestory & Cartrider
4th grade - Drift City
5th grade - SD Gundam
6th grade - Sudden Attack
^video game life.
then I came to America in middle school. I think I found Club Penguin in 7th grade, i went back in 10th grade when they were out for iOS version. Then I made 500k from a mini game called puffle rescue - underwater. I could've easily made around 1m. but 100k was way enough to purchase every single item in that game.