Has to be some stupid shit free to play MMO from the early 2000s, 4Story or Metin2 or something. I remember not understanding english and not being able to do quests because I had no idea they even existed, so I just stood in the beginner zone and leveled by killing level 1 mobs all day long. Got to like level 15 or so before some dude who spoke my language noticed me and told me how dumb I was.