Ubisoft announced Monday that it has bought Massive Entertainment, the Sweden-based studio behind popular strategy title "World In Conflict."

"We are delighted to welcome the talented team of creators at Massive into the Ubisoft family," Ubisoft executive director of worldwide production studios Christine Burgess-Quemard said in a statement released by the North America office here.

"Ubisoft is growing at an intense pace and our strategy is to ensure the strength of our global creative teams."

Ubisoft bought Massive from Activision Blizzard for an undisclosed amount.

The surge in sales was credited to launches of "Brothers in Arms Hell's Highway" and "SoulCaliber IV" versions for Sony PlayStation 3 and Microsoft XBox 360 videogame consoles along with "casual games" for Nintendo DS devices.

An eagerly-awaited "Prince of Persia" adventure title is due for release by Ubisoft in early December.

New Ubisoft offerings for shooter fans include "Far Cry 2" open-world action game and "Tom Clancy's End War" military strategy game.