Meh. I'll give 'em Doom. Oh the memories of 3AM demon slaying with the lights out...
What about old school Metal Gear? (the nintendo one)
...Or MGS. (The Gamecube re-release is sweet!)
The Tenchu series (except the recent couple)
Resident Evil 2 and 3. (4 is awesome, but doesn't fit the list)
Final Fantasy (The only series with "final" in the name that can spawn so many sequels and get away with it)
Ace Combat series
Like said so many times before, Games That Change the World was written off consumer sales reports vs. actually changing gamers lives...