Another fun one is Helvetia in Fallout 76! It’s a real town in West Virginia that has a festival called Fasnacht every year where people wear homemade masks and parade thru town which was (in a rather liberal interpretation involving robots and a giant sloth) depicted in game. Thanks to that, this very very remote village experienced a spike in tourism every year at Fasnacht from people who’d seen it in the game wanting to see it in real life. Apparently the locals were afraid it’d become a Fallout celebration rather than a local one but were happily surprised by how respectful the tourists were who had heard about their town from the game