Top 10 Games Of All Time

I read an article describing the top 5 games of all time, but most of them are pretty obscure. So here are my top 10 games of all time, in no particular order.

Super Smash Bros.
Half-Life 2
Counter-Strike: Source
Halo
Halo 2
Unreal Tournament
Unreal Tournament 2004
Command & Conquer: Generals: Zero Hour
Command & Conquer: Red Alert 2: Yuri's Revenge
Battlefield 1942

There are so many other good ones, but these are the ones I really enjoyed playing (and some I still play).