I wanna say Yoshis Island for SNES but it was so long ago I don't remember if it was one or two sittings. Dunno about the "that was so good" part though. Just completed it :)
Patient Gamers
A gaming community free from the hype and oversaturation of current releases, catering to gamers who wait at least 12 months after release to play a game. Whether it's price, waiting for bugs/issues to be patched, DLC to be released, don't meet the system requirements, or just haven't had the time to keep up with the latest releases.
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Spec Ops: The Line. I started playing it in the morning, the story kept me engaged (and the gameplay was fun enough). I played it all day to its conclusion.
Ironic!
Why?
Because it's a game that's constantly telling the player that they should stop playing it. That everything is going to get worse if you do and it's all your fault. That you're going to cross the line again and again and again until every single person in the game is doomed. And then we play through the entire thing anyway, because it's so fucking good.
Plants Vs. Zombies!
My wife and I just sat there like... zombies... for the whole day and night until we finished it, and then went to bed surprised and happy when we got our musical reward at the end!
The Flash gaming era at it's best.