For me it's Luigi's Mansion DM. I would go to my friends house and would play scarescraper with 3 people at once.

for me its Animal Crossing

isnt this the same drawing you did a couple posts ago

Probably Pokémon Y for me. I spent so much time on that game after it came out. 400-500 hours.

The Yo-Kai Watch series and Mario 3D Land