What do you think is the most popular game of All-Time, whether its a series, franchise or single game, which one holds the title for most popular of all time???

I am not sure, but for playstation, I would say Tomb Raider.
It has started since 1997 by eidos.Now crystal dynamics has it and they have develop it very well.
It's one of my favorite games and I know that a lot of people buy it.

I would think Pong was the most memorable game becuase it's classic, it's an old fun game to play with, and it's stll a fun game.

The 2nd would be Pac-Man because it is also a good, old classic, fun game to play with.

But I think Mario is one of the most memorable game of the present because it is an awesome franchise with hardcore characters, unique gameplay and music, and it is just a fun game to play.

I think this has been done before but I can't find it right now, so meh.
I mean we have lots of best on etc system, but I suppose this is different.

Tetris hands down is probally the best and most popular game of all time.
Think about it. It's on nearly every console in one way or another.
Everyone has heard of it, probally everyone has played it at least once.
It's been around longer then most other game franchises (over 25 years now) and it still sells large amounts.
The total amount of all games called Tetris or based off Tetris is in the 100's if not 1,000's.
The franchise has earned more then most other game franchises ever.
It is both simplistic and difficult, anyone can play it.

People might not vote for it in a competition, but if you take all those facts into consideration Tetris is indeed the silent winner of most popular game ever.

DH is right. But Tetris aside, what can you say besides Pokemon? Everyone knows what Pokemon is, whether they like it and play it or not.

Mario probably just about everyone knows what Mario is.

Yeah I agree with DH on this one also, it's even on cell-phones so thats a place some games never get on which makes it even more popular...