This will be a bit tough for a lot of people. Anyway you have to or try to remember and name every game you have played up until this point and maybe after it.
Forbidden Siren 2
Smackdown 1, 2, 3, 4, 5
Smackdown vs Raw 06, 07, 08, 09
Resident Evil 1,2,3,4, Code Veronica, Umbrella Chronicles
Fifa 02, 03, 04, 05, 06, 07, 08
Tekken 1, 2, 3, 4, 5, Tag
Tomb Raider 1, 2, 3, 4, Legend
Halo 1, 2, 3
Pro Evo Soccer 1, 4, 5
Timesplitters1, 2, Future Perfect
Dead or Alive 1, 2, 3, Ultimate
Medal of Honour Frontline, Rising Sun, European Assault
Manhunt
Max Payne 1, 2
Driver 1, 2, 3, Parallel Lines
Prince of Persia: The Sands of Time
Baldurs Gate 1, 2
Project Zero 1, 2
Freedom Fighters
Enter the Matrix, Path of Neo
Star Wars Episode 1, 3, Jedi Power Battles, Starfighter,
Run Like Hell
Silent Scope 1, 2 ,3
Grand Theft Auto 1, 2, 3, 4, Vice City, San Andreas, Liberty City Stories
Metal Gear Solid 1, 2 ,3, 4, Substance, Special Missions
The Suffering Ties That Bind
Far Cry Instincts
Mercenaries
Mission Impossible
Half Life 1, 2
Bloodrayne
Need for Speed Underground 1, 2
Soulcalibur 2
Mystic Heroes
The Lord of The Rings Two Towers, Return of The King
Dead to Rights
The Legend of Zelda Ocarina of Time' Master Quest, Twilight Princess, Windwaker
Wii Sports
Rayman Raving Rabids 1, 2
Oblivion
Morrowind
The Sims 1, 2, Bustin Out
The Darkness
Assassins Creed
Motorstorm
Heavenly Sword
Grand Turismo 1, 2, 3, 4, 5 prologue007
Goldeneye
Super Mario
Sonic
Mortal Kombat 1, 2, 3, Trillogy, Deadly Alliance, Deception
Street Fighter 1, 2 Turbo, Alpha, Alpha2, Alpha3, EX, EX Plus Alpha
Killer Instinct
Super Metroid, Prime, Prime 2, Prime 3
ISS
Cool Boarders 3, 4
007 Tomorrow Never Dies
Dino Crisis
Carmageddon
Toy Story 2
Onimusha 1, 2
X Squad
Maximo
Bomber Man
Batman and Robin
Tenchu 1, 2, Birth of the Assassin
The Getaway 1, 2
Condemned
Kingdom Hearts
Devil May Cry 1, 3
Killzone
Hitman 2, Contracts,
Tony Hawk 1, 2, 4, Underground
Stuntman
Splinter Cell, Pandora Tomorrow
Clock Tower 3
Silent Hill 1, 2, 3
WWE Day of Wreckoning, 2
007 Nightfire
Gauntlet Dark Legacy
Extermination
SSX 1, Tricky
State of Emergency
Wipeout 3
Burnout 2, 3
Armymen
Ace Combat
WWE Raw 2
Final Fantasy 7, 8, 9, 10
Spyro the Dragon
Soul Reaver1, 2
007 Racing
A Bugs Life
Action Man
Ready to Rumble Round 2
Destruction Derby 1, 2, 3
G-Police
Medal of Honour Underground
Ridge Racer 1, Revolution, 4
Rollcage
Duke Nukem Land of the Babes
007 The World is not Enough
Rage Racer
KulaWorld
Hitman: Blood Money
Fallout 3
Fable 2
Bioshock
Command and Conquer 3
Pro Evolution Soccer 2008, 2009
Haze
Condemned 2
Super Smash Brothers Brawl
Half Life Orange Box
Dead or Alive 4
Left 4 Dead
Overlord
Gears of War 1, 2
Clive Barkers: Jericho
Samurai Warriors 2
Star Wars the Force Unleashed
Guitar Hero 3, World Tour, Aerosmith
Mercenaries 2
Dead Rising
This isn't all of the games i ever played there's still more which i might add later.
Forbidden Siren 2
Smackdown 1, 2, 3, 4, 5
Smackdown vs Raw 06, 07, 08, 09
Resident Evil 1,2,3,4, Code Veronica, Umbrella Chronicles
Fifa 02, 03, 04, 05, 06, 07, 08
Tekken 1, 2, 3, 4, 5, Tag
Tomb Raider 1, 2, 3, 4, Legend
Halo 1, 2, 3
Pro Evo Soccer 1, 4, 5
Timesplitters1, 2, Future Perfect
Dead or Alive 1, 2, 3, Ultimate
Medal of Honour Frontline, Rising Sun, European Assault
Manhunt
Max Payne 1, 2
Driver 1, 2, 3, Parallel Lines
Prince of Persia: The Sands of Time
Baldurs Gate 1, 2
Project Zero 1, 2
Freedom Fighters
Enter the Matrix, Path of Neo
Star Wars Episode 1, 3, Jedi Power Battles, Starfighter,
Run Like Hell
Silent Scope 1, 2 ,3
Grand Theft Auto 1, 2, 3, 4, Vice City, San Andreas, Liberty City Stories
Metal Gear Solid 1, 2 ,3, 4, Substance, Special Missions
The Suffering Ties That Bind
Far Cry Instincts
Mercenaries
Mission Impossible
Half Life 1, 2
Bloodrayne
Need for Speed Underground 1, 2
Soulcalibur 2
Mystic Heroes
The Lord of The Rings Two Towers, Return of The King
Dead to Rights
The Legend of Zelda Ocarina of Time' Master Quest, Twilight Princess, Windwaker
Wii Sports
Rayman Raving Rabids 1, 2
Oblivion
Morrowind
The Sims 1, 2, Bustin Out
The Darkness
Assassins Creed
Motorstorm
Heavenly Sword
Grand Turismo 1, 2, 3, 4, 5 prologue007
Goldeneye
Super Mario
Sonic
Mortal Kombat 1, 2, 3, Trillogy, Deadly Alliance, Deception
Street Fighter 1, 2 Turbo, Alpha, Alpha2, Alpha3, EX, EX Plus Alpha
Killer Instinct
Super Metroid, Prime, Prime 2, Prime 3
ISS
Cool Boarders 3, 4
007 Tomorrow Never Dies
Dino Crisis
Carmageddon
Toy Story 2
Onimusha 1, 2
X Squad
Maximo
Bomber Man
Batman and Robin
Tenchu 1, 2, Birth of the Assassin
The Getaway 1, 2
Condemned
Kingdom Hearts
Devil May Cry 1, 3
Killzone
Hitman 2, Contracts,
Tony Hawk 1, 2, 4, Underground
Stuntman
Splinter Cell, Pandora Tomorrow
Clock Tower 3
Silent Hill 1, 2, 3
WWE Day of Wreckoning, 2
007 Nightfire
Gauntlet Dark Legacy
Extermination
SSX 1, Tricky
State of Emergency
Wipeout 3
Burnout 2, 3
Armymen
Ace Combat
WWE Raw 2
Final Fantasy 7, 8, 9, 10
Spyro the Dragon
Soul Reaver1, 2
007 Racing
A Bugs Life
Action Man
Ready to Rumble Round 2
Destruction Derby 1, 2, 3
G-Police
Medal of Honour Underground
Ridge Racer 1, Revolution, 4
Rollcage
Duke Nukem Land of the Babes
007 The World is not Enough
Rage Racer
KulaWorld
Hitman: Blood Money
Fallout 3
Fable 2
Bioshock
Command and Conquer 3
Pro Evolution Soccer 2008, 2009
Haze
Condemned 2
Super Smash Brothers Brawl
Half Life Orange Box
Dead or Alive 4
Left 4 Dead
Overlord
Gears of War 1, 2
Clive Barkers: Jericho
Samurai Warriors 2
Star Wars the Force Unleashed
Guitar Hero 3, World Tour, Aerosmith
Mercenaries 2
Dead Rising
This isn't all of the games i ever played there's still more which i might add later.