Kingdom Hearts, hands down. I was ten when the first game came out, and I remember listening to the soundtrack while walking down the hallways in middle school. I only played the console games, so I recently bought the remixed versions on Ps4 in order to play all of them and get ready for KH3. There's really no other game that incites that level of nostalgia for me.

Last year I bought Final Fantasy XV, and the ending really hit me hard, which was very unusual for me. I literally couldn't listen to Stand By Me for months. There were some plot issues that were poorly done, but I guess the main character's circumstances got to me.