Definitely tf2

Usually community servers are empty but pub players are practically infinite

Minecraft, satisfactory, factorio are ones that come to mind that keep me up too late as an adult. The TES games are ones I remember from my childhood. Morrowind was my jam back in the day, as was NWN.

For me, the Civilization V intro, lots of lan parties and online sessions where we suddenly found ourselves playing while the birds were waking up to the mørning sun outside our window.

Civilization IV

Nier

https://www.youtube.com/watch?v=P8XTbluLDyE

The opening rant of Kaine refers to something in the late game and it's soulcrushing, but I love it and how they chose to scream at you on the first launch of the game when you don't even know who's speaking. That sets the tone.

Starcraft 1 & Warcraft 2

Minecraft, though it's because I usually open it after sunrise if I'm still awake. most of the time if I'm up all night I'm really deep into surfing the web to the point of like, obscure sites about aliens or something.

Guild wars 1

Command and conquer : red alert

Diablo (the original)

For me it was the Star Wars Rebellion main menu. I played that game tons back in the day on a PC that couldn't handle much more. Starting it up locked me into just wanting to finish a game in one night.

none. staying up past sunrise is insane. even for work