Borderlands 2 ships 5 million copies

Borderlands 2 has been a success for publisher 2K Games, appearing high on last month's NPD chart. In Take 2's earnings report, the company revealed that it has shipped 5 million copies at retail.

The numbers are framed as "sold in" figures, so we can't be certain how many of those copies have been sold through to customers. From the company's perspective, though, sales to retailers are what matters most. The report also cited "strong" digital sales, but didn't share specific figures. The same earnings report touted the strong critical reception surrounding XCOM: Enemy Unknown, but didn't cite sales figures for the game.