So I'm the only one playing the best selling third party game of all time?

Halo's

Sudoku, tetris, Uncharted 2 (single player and multiplayer) and Street Fighter IV.

On the PC

Total War-games
Civilization 4
Supreme Commander
Combat mission (multiplayer only, AI sucks badly)
Oblivion (mods FTW!)
Fallout 1&2

Sword Of the Stars

On Consoles

MAG
Metal Gear Solid-series

chrono trigger
nsmbwii
earthbound
super mario world

Any online game such as Cod4, BC2, Halo: Reach Beta, and MW2.

Durrrrrrr. . . forgot Diablo 2. *smacks self in head*

Mario Kart Wii is definitely one.

I have been playing Monster Hunter Tri an awful lot recently.

Any game with the words "Fighter", "Street", and some sort of number. A Greek letter (ie: Alpha) or Roman numeral (ie: III) is optional.

Super Smash Bros series.