The Xbox 360 has sold six million units in Europe following a price cut for all three models in the region.
"We're very excited that more consumers in Europe are joining the ever-growing Xbox 360 community," said Chris Lewis, Xbox Europe almost-boss.
"We're now the best-value next-gen console on the market with an entry-level ERP of GBP 129.99, and consumers have clearly responded to that offering.
"We're supporting this momentum by putting launch-level investment into a European advertising campaign, launching this week, which shows how Xbox 360 is changing the way consumers experience entertainment," he added.
Last Friday, Microsoft reduced the price of the Xbox 360 across Europe. The Arcade unit now retails for GBP 129.99, the Premium machine for GBP 169.99 and the Elite model for GBP 229.99.
As well as titles such as Fable 2 and Lips, Microsoft is also due to revamp the Xbox Live dashboard and introduce Mii-style avatars to the online service later this year.