Games you've invested the most time in

[Severance]

i don't know how much but heres in order of highest to lowest

EverQuest (my first ever MMO and it was all that i played for quite awhile) ,

PlanetSide ,(was and still groundbreaking FPS MMO)

CounterStrike ,(this is the first FPS to be popular in LAN over here , just about everytime i go out with friends we end up playing it)

WoW

Final Fantasy XI 

Elder Scrolls Daggerfall (loved this game on my old desktop , i often forget that i have a life outside of it)