What a difference a game makes. Vivendi Universal announced its first quarter earnings today, and its gaming division once again posted double-digit revenue increases attributed to the success of World of Warcraft.

Nearly than a year and a half after World of Warcraft’s original release, the game has propelled Vivendi Universal Games’ revenue up 18.6 percent from the first quarter of 2005. The company reported 134 million euros (almost $165 million) in revenue for the quarter. Other games cited as making significant contributions to Vivendi’s bottom line include Ice Age 2, as well as back catalog titles such as 50 Cent: Bulletproof and Crash Tag Team Racing.