X-Com UFO Defense
Silent Storm Gold
Rise of Nations
Europa Universalis III : Heir to the Throne
Mount & Blade
Civ IV : Beyond the Sword
Team Fortress 2
Dawn of War : Dark Crusade
Dawn of War II
Galactic Civ II : Twilight of the Arnor
Solium Infernum
Batman : Arkham Asylum
Crown of Glory : Emperor's Edition
Close Combat : Cross of Iron
Steel Panthers World at War

Blackthorne
Freelancer (i pray to the gods every day to see this and blackthorne in here)
All the syndicate games
lost vikings
DooM 1&2
Homm 3
Abes odysee
Abes exodus
Vampire the masquerade (Best rpg known to me aswell as stonekeep)
Stonekeep
Fallout serie
Painkiller
Gorky 17
Giants citicen kabuto
Psychonauts
Arcanum
Halo (in co-op)
Monkey island (Awesome memories from the good ol day in front of my amiga :P)
Phantasy star online (ARGH!!!, so much time wasted on this game >.<)
Sanitarium
Diablo 1&2
Deus ex (You should really get this in here guys)
Shadow of colossus
Metroid serie all the way up to super metroid and the gamecube version.
Call of cthulhu: Dark corners of the earth (would allso be awesome to see in here sometime)
All of the resident evil games
Silent hill 1
Postal 1&2
American mc'gees alice
metal gear solid (ps1 version)
the witcher
X-com 1&2
dawn of war 1&2
and these are not written in any particular order, but they have all given or left me with very fond memories of them and so i love them all :)

Me? We ok you asked for it.
Dungeon Master/Chaos Strikes Back
Rocket Ranger
Eye of the Beholder
Defender of the Crown
Black Crypt
X-Com/UFO: Enemy Unknown
Teenage Mutant Ninja Turtles (Arcade)
Aliens Vs Predator (Arcade)
Alien 3: The Gun
Gunstar Heroes
Xenon 2
Speedball 2
R-Type
Ghouls & Ghosts
Black Tiger
Castlevania (most of them)
Resident Evil: Code Veronica
Metal Gear Solid
Einhander
Soul Edge & Soul Calibur
Tekken 3
Virtua Fighter (all)
Sonic CD
Die Hard Arcade
Street Fighter Alpha 1, 2 & 3
Street Fighter 2, Turbo, Super, Super Turbo, Super Turbo X
Street Fighter 3: Third Strike
Street Fighter 4
Power Stone
Virtual ON
Panzer Dragoon, Zwei, Saga, Orta
Legend of Zelda: LTTP, OOT, MM, WW
Super Mario World
Mario Kart, 64, Double Dash
Thunderforce V
Truxton
194X
Mercs
Auto Modellista
Need For Speed, HP2, Shift
Gran Turismo (all)
Project Gotham Racing (all)
Ridge Racer Revolution
Starblade (arcade)
Dungeon Keeper 2
Civilization (all)
Rogue Trooper
Dawn of War
Fallout (all)
Knights of the Old Republic
Batman: Arkham Asylum
The King of Fighters (all)
Command & Conquer (all except Generals and 4)
Total War (all)
Virtua Cop 1 & 2
Time Crisis
LOTR: The Battle for Middle Earth
LOTR: The Third Age
GTA (all)
Burnout (all)
Mass Effect 1 & 2
Dragon Age: Origins
Crysis
X-Wing & TIE Fighter
All SCUMM games
Star Control 1 & 2
Road Rash (3DO)
Warcraft 2
Jade Empire
Final Fantasy X
Golden Sun
Pok�mon Crystal
Sin and Punishment
Goldeneye
Diddy Kong Racing
Super Mario 64
Suikoden
Vandal Hearts
Final Fantasy Tactics
Guardian Heroes
Shining Force, 2, 3, Holy Ark
Kingdom Hearts
Perfect Dark
Grandia
F-Zero, GX, GP Legends
Rival Schools
Street Fighter EX plus Alpha
Darkstalkers, 2, Vampire Savior
Spider-Man (Playstation)
Timesplitters (all)
Bangai-O
Radiant Silvergun
NiGHTS
Deus Ex
Turrican
Tempest 2000
Star Wars Arcade
Star Trek: Starfleet Academy (SNES)
Wing Commander 3
WWE: Royal Rumble (SNES)
Wipeout XL
Fighters Megamix
Flashback
Strider
Starwing
All the Capcom Vs Series
Phantasy Star IV
Crazy Taxi (all)
Jet Force Gemini
Metropolis Street Racer
Dune 2
System Rush: Evolution
Pathway to Glory & Ikusa Islands
I suppose that will do for now.

Huh, where should I start.. I'll forget a lot anyway..
Ok, here goes, no order at all, mixed platforms [PC&C64]:
The Last Ninja 1-3
Jagged Alliance, JA;DG, JA2, JA2:UB
Sierra's Quest series, especially Space Quests, Police Quests, LSLs, and QfGs
Flashback
Crusader: No Regret&No Remorse
Boulder Dash
Dune 2
Warcraft 1
Diablo 1
Descent 1-3
Forbidden Forest
Aztek Challenge
System Shock 1&2
Feud [c64]
Everyone's a Wally
Pyjamarama
Ultimas [especially UWs]
Betrayal At Krondor
Alien Breed
Pirates!
Archon [c64] / Archon Ultra [PC]
Curse of the Monkey Island
Wizard Of Wor
Laser Squad
Unreal Tournaments
Heroes of M&M 2
Hi-Octane
Fallout 1-2
Civilization 1-4
Dizzy series: 2,Treasure Island, 3.Fantasy Adventure, 4. Magicland and 6. Prince Of Yolkfolk
Test Drive 3
Stunts
Stunt Car Racer
Yendorian Tales: Book 1, Chapter 2 & Tyrants Of Thaine
BlackThorne
Driller
Total Eclipse
Auf Wiedersehen Monty
Mission Elevator
SkyRoads
X-Coms: Enemy Unknown, TftD, Apocalypse
Shadowgrounds
Bionic Commando Rearmed
Far Cry
Save New York
Cauldron 2
Barbarian
Tunnels Of Armageddon
Dungeon Keeper 1&2
Doom 1&2
DoomRL
Ancient Domains Of Mystery
Deadly Rooms Of Death
Heretic
Hexen 1&2
Fallout
Split Personalities [c64]
Agent USA
Flight Deck
MegaBlast
DreamWeb
Grand Theft Auto [edit:] and GTA3 [/edit]
Blood
Duke Nukem 3D
Platoon [c64]
and a sh..load more
Oh yeah, and one special:
Ruff'n'Tumble for the Amiga

Half-life series(and the many official/unofficial mods)
Resident evil series
duke nukem 3d
Blood series
Shogo MAD
Super mario series(most of it anyways)(dont forget about super mario land :D)
Diablo series
Call of duty series(oh god here comes the flamers)
Max Payne series
Duex ex(have a pleasant memory of killing the first guy you talk to over and over)
Earthbound/Mother series
Unreal series
Quake series
Doom series
TES:Oblivion
Baldurs gate series
Aliens vs predator (1999) and aliens vs predator 2(havent played the new one)
Devil May Cry series
Castlevania sotn(and some of the ds castlevanias too but i havent really played the "classic" games)
Legend of Zelda series(again havent played the old 2d ones)
Turok 2(havent played the first one or third much...Nor have i passed the second level in the second game...)
Fable 1 (fable 2 had some changes that really messed it up for me.It was also missing some things)
Metal gear solid 4(I havent played the other games, ok :(...)
Demon Souls(Yum, classic difficulty i havent seen in soooooo long)
Noticed there were some arcade games:
Simpsons the arcade
Virtual Cop(Very foggy memories but i remember this game being good)
House of the dead series
Time Crisis series

Just not enough Hidden & Dangerous and SWAT love in here, what gives?
Truly awesome titles that I hope one day get the GoG treatment.
Baldur's Gate
Deus Ex
Unreal Tournament
Thief
Half-Life
Grand Theft Auto
Max Payne
STALKER
Rise of Nations
Commandos
Need For Speed II (No, really >_>)
Starlancer
You've something wrong with you if you derive no fun from these games.. :P

Defense Grid
Trials 2 (Love/hate)
Farcry