Bethesda believes Fallout: New Vegas can top the phenomenal success of its 2008 predecessor, Fallout 3.
The new game, developed by Obsidian Entertainment, is due for release in Q4.
Fallout 3 debuted at No.1 in the ELSPA/GfK Chart-Track All Formats charts and managed to shift 4.7m copies worldwide in its first week.
It also outsold the combined sales of all previous Fallout games in just two days.
“Based on what we’re seeing so far from the response at retail and from gamers, we expect New Vegas to do even better than Fallout 3,” said Bethesda’s global VP of PR and marketing Pete Hines.
“We’ll have to wait and see just how much better. We’ve built on the strengths of Fallout 3, what we know worked and added a whole new host of features and touches that further improve the experience.
“Take all of that to a new setting like Las Vegas, which is a great fit for the Fallout brand, and it gives us every reason to believe this can be a huge success for us.”