Hmmm... probably XIV Heavensward release back when I was in highschool and could do stupid stuff like midnight releases. Stayed up 24 hours to grind out Machinist to 60 LOL.
Some other notable experiences is probably Sword and Shield! I played for about nearly 80 hours where I'd just play pokemon and talk to my friends on discord. No regrets!
When I was younger and got Kingdom Hearts: Chain of Memories for the GBA I literally played for nearly 24 hours straight. I got it for Christmas and literally played the entire Christmas day and through the night. I played so much that I got callouses on my thumb from the D-Pad.
When I was a young teenager (like 12-14) Animal Crossing was the closest thing I had to a social life, so I would often spend all day playing it, only stopping to go to school, eat, sleep or use the bathroom (and even then I often took my DS to the bathroom with me, don’tjudgemepls )
Really couldn't say...but, probably no more than 10 hours. There are definitely a few games that I've played incessantly on the day of release. But, I don't think I've ever played more than a solid 10. I think I'd feel like too much of a bum if I ever did that. Even 10 might be a stretch...as I'll usually play a game for 4 or 5 hours, turn it off for an hour...return to it and play for another 3 or 4 hours...but, there's usually some sort of break in the middle...even if it's half an hour, or 20 minutes. Lol.
as a kid ive probably logged more hours in then i should ever need, but recently i finished all of birth by sleep in one sitting. probably a good 16 hours or so, half of which were spent on trying to figure out a boss fight during the ventus route ( i was underleveled because of how fast i was running thru the game HGFHGFGH )
animal crossing is coming close tho i actually hurt my wrist terraforming so much so. im takinga small break!
I have a distinct memory playing Sims 2: Castaway on the wii for 13-15 hours straight when I first got it. But I probably beat that record somewhere with Sins 2 on PC