What's the highest amount of hours straight per session of gaming have you done?

Did like 12 hours of Dying Light with a friend of mine once, it was lots of fun. Exhausted at the end tho lol

I think it's 15 but the game I played was a roleplay game and it's still very good

16 hours on minecraft with some friends, hypixel minez server

Ive done around 16-18 hours during the summers before. But usually its 6-8 hours normal time for me. However, I have done some 24 hour gaming events but I fell asleep right at 19 hours. I cant do all-nighters very well. Lol

I had about 15 hours in gta v.