Since Newell is one of the only people on Earth with access to Steam sales data, that 3 million number is likely to be one of the most accurate estimates of Portal 2's sales we'll ever see. For comparison, the first Portal had sold four million copies as of Portal 2's launch -- though that number doesn't take Steam into account.
Posted on Oct 22nd 2014 5:00PM
Posted on Oct 20th 2014 3:30PM
Posted on Oct 20th 2014 12:49PM