All I really play now is Planetside and Counter Strike. They keep me entertained though.

Wow, pretty hard to form this list up..But heres my go

Heros of might & Magic

C&C series

Halo Series

Tabula Rasa

WoW

Warcraft series

Warhammer40k with expansions

Warrock

Gunz

Soldier Front

Eve Online

Flyff

Rising Force online

Mechwarrior

StarSiege

Tribes series(up to vengeance)

Battlefield series

Starwars battlefront

Knights of the Old republic

EQ

LOTR online

Empire Earth Series

SilkRoad

unreal tournament series

Quake Series(up to wars)

Guild Wars series

Lineage 2

Ultima online series

And well, thats all that I can think of at the moment.

Yikes, with a large fraction of those being subscription games I bet you can't supersize too many of your meals at McD

Quake(1,2,3): (Uriel)
good set of games that are still played with 1000's of players. This game also what started me off into coding and modeling.

Doom(all of them): great game and still is.

Medal of Honer(again all of them): (Fabolous)
awesome game I especially enjoyed MOHAA: SH.

Red alert 1 & 2:best C&C RTS game

Unreal tournament(got them all): (Fabolous)
Okay game imo, never really caught on like others did.

Planetside: (Urielvs, SweetMCG, DareingNC, Notsorry, and many many more)
Best MMO around, still played even with the annoying updates that I hate.

Splinter Cell(all of them):Love this game. I love being the spy that kills everything

Final Fantasy:FF7 is what started me and what got me hooked on the series

I got more but can't think of right now.

Taiko! wrote:
Yikes, with a large fraction of those being subscription games I bet you can't supersize too many of your meals at McD

Heh, thats why I love my military job, yes I do. In the Air Force here, and its quite good pay, and I even run a welding job on the side. So for most of the year, I got quite a bit of free time, and spare money to keep me entertained.

So many to list but only a few impacted me.

Medal of Honor Allied Assault was my first real FPS experience. Multitude of FPS games after this but Mohaa was the one for me that got it all started.
Planetside - beta up til last year. Still one of my favorites.
World of Warcraft - First rpg I have dabbled in.