Diablo I (Once, with rogue)
Diablo II (killed baal in hell with two characters)
Warcraft III
Warcraft III Frozen Throne (Completed every single campaign including bonus)
Portal
Portal 2
Fallout 3: GOTY Edition
Witcher 1 (2 playthrough)
Witcher 2 (2 playthrough)
Mass Effect 1 (Paragon Soldier)
Mass Effect 2 with DLCs (4 different job, 3 renegade 1 paragon ending)
Deus Ex 1 (Once)
Deus Ex: Human Revolution (One on pacifist, one on high profile)
Half Life 1 (Once)
Half Life: Opposing Force
Half Life: Blue Shift
Half Life 2
Half Life 2: Episode 1
Half Life 2: Episode 2
Crysis 1
Crysis Warhead
Crysis 2
Prince of Persia (2008)
Price of Persia (the very first one)
Far Cry 2
Plant vs Zombies
Starcraft 1 (Campaign)
Starcraft 2 (Campaign, multi abandoned)
Call of Duty: Modern Warfare
Call of Duty: Modern Warfare 2
Call of Duty: Black Ops
Need for Speed: Underground 2
Need for Speed: Most Wanted
Dragon Age Origins:GOTY Edition
Dragon Age 2
Assassin's Creed
Assassin's Creed 2 (100% Sync)
Assassin's Creed: Brotherhood (100% Sync)
Battlefield: Bad Company 2
Battlefield 3
BioShock
Batman: Arkham Asylum
Dead Rising 2
Just Cause 2 (dont bothered to aim for 100%, too tedious)
Prototype
Machinarium
World Of Goo
Devil May Cry 3
Devil May Cry 4
Terraria?
Pokemon (dunno until wat version liao)
Torchlight

Retro Game
Commander Keen
Super Mario World
Inspector Gadget

Quit
RO
Rusty Hearts
Perfect World MY
Zhu Xian MY
and pretty much every single online game.

Ongoing
TF2
SKYRIMMMMMMMM (goodbye my life!)