The Atari 2600 is celebrating its 35th birthday this week. Has it really been that long since Pong?!?

The Atari 2600 is arguably one of the most popular gaming systems ever. As of 2004, there were an estimated 30 million units sold and it owns a place in the National Toy Hall of Fame.

Obvious to most, Pac-Man still remains the king of the 2600, but we wanted to take a look back at some of the other popular titles that dominated the video game landscape back in the early 1980's.

Check out this graphic of the 10 best selling Atari games of all time.