God of War: Chains of Olympus
Star Ocean: First Departure
Final Fantasy XII: Revenant Wings
Final Fantasy Tactics
Age of Booty
GTA IV (with the Liberty City Minute)
CoD: World at War
Dawn of War: Dark Crusade
Dawn of War: Soulstorm
Dawn of War 2
Sacred 2
Red Alert 3
Lost Planet
Prey (talk about making me motion sick, UGH)
Starlancer
Titan Quest
Sins of a Solar Empire (not really a campaign, but played through that enough to consider it complete)
Guild Wars (same as above, but I did play all the way through multiple campaigns since the start of this year)
There's probably more, but a lot of my stuff is in storage, so it's hard to look at the bookshelf and see what's in the Done pile. I'm constantly in/out of the hospital, it seems, so atm I have more free time than usual.

Finished Castlevania: Order of Ecclesia. Last boss was ridiculously easy when I got a hang of the tactics (literally blew him away in 7 hits). Great game overall though, very well thought out.

I just finished Wallace and Gromit: The Last Resort.
I chuckled through practically the entire thing.

Dead Space
Saints Row 2
Metal Gear Solid

Hellgate London... Don't judge me!

Plants vs. Zombies

It's not a bad game, yet it's not a good game either.

I recently finished Gears Of War 1 and Wallace & Gromit: The Last Resort
I also completed losing the money to buy Velvet Assassin thanks to this sodding impacted wisdom tooth

So far:
Mass Effect
Saint's Row 2
Spectromancer
Prince of Persia
Rogue Trooper
Plants vs. Zombies (sort of - got the silver trophy, not the gold one - yet)

Finished Resident Evil 4 for the 3rd time, except this time it was the PS2 version :)

Just finish The Legend of Zelda : Link's Awakening

Finally finished Beyond Good & Evil, the game with the most fucked up difficulty curve I've ever encountered.

I have completed that game where the devil has a tendency to cry, four times. Effing gamepad bastards, was doubly harder than I thought.

Really? there were quite few difficult moments, but overall the game was well balanced (except the game in the bar. I managed to beat that shark once. got his pearl. second time i failed. and i broke a small part on my keyboard when i this esc with my fist)
List updated. any mistakes. plz inform me! :)

Haha, you did know what I was talking about here.