Without small breaks Resident Evil 4 Remake have my record. Played it for 7 hours straight without pause the first day I got my hands on it. Like a giddy kid.

I also used to be a fan of Sid Meier’s Civilization 2 as a kid, and in a family who moved around a lot. So I was always trying to make new friends, but many weekends I’d be stuck at home… and well, has anybody else tried to play a sane amount of Civ 2 back in the 1990s?
Most often, it didn’t work out.

Back in my teen days we would have Halo 2 and 3 lan parties with customs games on the weekends. Several friends and I would stay up all night until the morning. No gaming experience tops those Halo parties.

I dunno, like 7-8 hours I guess? Something of the sort?

Those were the days. Now If I sit for 3 hours straight gaming it feels like way too much.

There is no sane amount when it comes to Civ.

The first time I played it a school friend had managed to get a DOS copy of the first game, We were 17 at the time, in high school and since my dad had a fast PC for work he came home with me to try out the game. He left the next morning at 6:30 AM, just before my parents would get up, to go home for breakfast, and we both went back to school without any sleep.

Civilization wasn't the most addictive though. When I brought 1830, the board game, over to another friend's house we ended up playing it through the night with half his family. Nobody got much sleep that night lol. I had played Risk with them before, got them instantly hooked on 1830 :)

Around 18 hours playing Pokémon Crystal during a school vacation trip to my grandma's place.

My GBA had a controller shapped accessory with battery that would plug on its back and make it like a Dualshock controller, which could also be plugged with an AC to the wall to recharge while playing.

My Crystal copy was actually a pirated cartdrige with 7 games (3 being Gold, Silver and Crystal), and the battery on it was faulty, so saves didn't work and I would play and lose all progress when I was finished. Was used to play like that.

I was like 11 years old, did not know english, so playing Pokemon was based on experiencing events and trying different stuff until something seemed to work so I memorized it and the next time I could go further into the game. Which was awesome, as it was also a big puzzle to me.

I was too excited to have made progress in a part I was stuck for too long, but I had to go sleep, and I couldn't fake it as I was sharing a single bedroom with my parents, brother and one cousin (so 5 people), because other family members were there as well and the whole house was filled with people (around 12 people in a house with 2 bedrooms, 1 couch and some space on the floor near it).

I was too excited and could not sleep properly at all, so when the first person woke up in the other room I took the chance to "wake up" as well. It was a bit past 5AM if I recall it right.

I played the game the whole day until like 11PM, even during the family meal times, gladly my mother was too busy with our other family members attention and did not take it away from me, just soft scolded me a few times and let me playing.

This was the first time I got to the elite four, and I had to grind a lot to be able to finally beat them and the champion. It took me most of the day, and I discovered there was more stuff, aka all of Kanto, after finishing it, lol, so I left the GBA plugged all night too, to keep playing the next day, but this time my mom made me stop it really early.

Such great memories, big family gatherings, discovering lots of things in Crystal, got my younger cousing hooked on gaming and specially Pokémon because of it, lol.

Back in the early 2000's, 16 hrs easy grinding in Ragnarok Online! Slept only for 7-8 hrs then repeat ad nauseum! Those were the days.

I did the Leman 24hr in GT5 in a Peugeot diesel 908 over a weekend  in two 12 hour shifts started at 10am saturday morning no way to save the race so at 10pm paused in the pits went to bed hoping that there was no overnight power glitch then restarted at 5am finishing at 5pm Sunday where I proceeded to celebrate my 13 lap win even though the algorithm handicap of better tire wear for the AI cars meant I needed to do something like 20% more stops for tires.

I feel like a rookie seeing all these numbers lol.

I think I played Killzone 2 for like 8 hours straight when I had the house to myself when I was younger. Beat the last third of the campaign and started steamrolling dudes in multiplayer right after. Although I do have the occasional 4 - 5 hour sessions of Civilization nowadays.

Only thing I remember is when I shut off Twilight Princess once, my Wii said I played for 11 hours. Might be the record, but it is possible that there had been a session or two, or ten, before that with something like SimCity 4, Rollercoaster Tycoon 2 or Anno 1602 that was longer than that.