World of Warcraft's subscription base increased by 200,000 in the quarter ended December 31, 2013, Activision Blizzard has announced.

The subscriber number now stands at 7.8 million.

"Global subscribership in the quarter ended at 7.8 million subscribers worldwide, and slightly above where we ended Q3, meaning that the player base has remained pretty stable for three successive quarters," commented Michael Morhaime, chief executive officer and president of Blizzard Entertainment.

Morhaime attributed the growth to a number of factors including the excitement from BlizzCon and the holiday season.

"As we head into Q1, we are not going to benefit as much from the same factors that drove Q4," added Morhaime. "So we will continue to work ways to drive engagements as we move closer to the release of the next expansion."

Looking ahead Morhaime says: "In terms of World of Warcraft, we think that the ongoing engagement in the game really is just dependent on ongoing content, and we're continuing to invest in growing the World of Warcraft development team and creating new content.

"And really looking towards getting into beta on Warlords of Draenor, we think there are a lot of great features that will drive engagement with the game and hopefully bring players back to the game."

Source: Activision Blizzard earnings, Seeking Alpha