Games you have completed in one sitting

[Forever of the Stars]

Fable (both the original and TLC), Metal Gear Solid, Pokemon (not in the sense of catching them all but there was definitely one long day where I got all the way through all of the original gyms and the league) Half Life 2 (and episodes 1 and 2) Portal. Bioshock. That's all I can think of at the moment, I'll edit when I can think of more

 

[StonkThis]

Halo 3, Portal, COD 4, MW 2... I think that's it.

 

[Ardna Xela]

Dead Space Extraction.

Just one more chapter. I'm gonna stop after the next one. Only one more... What? I've completed it already?

 

[himemiya1650]

CoD2,4,5,6
Portal
the Metal Gear Solids (without cinematics)

Beating it in one sitting really isn't an achievement, unless its Persona, or one of the FFs

 

[Brad Shepard]

Devil May Cry 4, short, but fun game.

 

[theguitarhero6]

Me n a friend beat Left 4 Dead 2 in one sitting, n we spent about a fourth of the time trying to beat the last "campaign".

 

[Hothcliff]

Portal after the first go-thru, and even that was only a day.
Half-Life Episode 1 I did in one sitting.
Episode 2 took more than one with the final level.

Bionicle I beat in like 2 hours. Huge waste of time.

All of the 'Lego' inspired games (Batman, Indiana Jones, Star Wars) too easy.

Did you try and collect everything? cos that lengthens the gameplay immensely, and its the only way you can unlock the best toys

 

[teutonicman]

Portal, Army of 2 The 40th day, and Modern Warfare 2 campaign.

 

[undyingdh777]

The day it came out, BioShock 2.

 

[Valiance]

Well, the most recent one I've gotta say is Zombie Driver, which I beat today in about 2 and a half hours...

 

[bassdrum]

I've played Portal several times, often in one sitting. Also, there was one disastrously long sitting in which I tore through a large chunk of Bioshock on a second or third playthrough.

 

[leady129]

None. I deliberately try to stretch out the experience. Especially if I'm enjoying it because once it's finished, I very rarely if ever go back for a second run-through.

 

[Troublesome Lagomorph]

Only one I can say I went through that fast was MW2.
I usually take my time.

 

[Donttazemehbro]

Mirror's Edge, Portal, HL 2

 

[Gindil]

Halo-F'ing-2!

It was one of the absolute WORST cliffhangers to a story that did NOTHING to advance the story save the Arbiter.

I was pissed.

 

[Chechosaurus]

Gears of War 1, Modern Warfare 2, Left 4 Dead 2, Resident Evil 4 (16 hours!), Portal, HL2: Episode:1, Way of the Samurai 1+2 (only like 3 hours each but designed for multiple play throughs)and probably a good few more that I just can't drag from the depths of my reluctant memory at this god-forsaken hour.

 

[berault]

Gears of War 1 and 2, Call of Duty 4, Call of Duty: World at War, Call of Duty: Modern Warfare 2, and Resident Evil 5 (only one that the whole "one sitting" actually became an issue)

 

[IWCAS]

Well a have beaten a few, but was a little disappointed in the latest all nighter.... MeW2. Just wasn't CoD4. WHERE IS MY M40?! Weapon Pack Weapon Pack.....! CoD4 map pack would excite me as well. Crossfire and Crash FTW. That one with the tanks and shit in the middle is cool too. XP traps like that are nice for camo.

 

[effilctar]

do replays count? If so, every game a played between the ages of 5 and 10. Most of the new releases too.