With the release of Diablo III: Reaper of Souls last week, the action RPG seem to enjoy a modicum of success if Blizzard Entertainment’s recent announcement is any indication.

The company known for the World Of Warcraft and Starcraft franchise (as well as the upcoming Heroes Of The Storm MOBA title) said that it sold 2.7 million copies of the expansion, which sounds impressive so far. However, Blizzard did not beat its previous record of the original game back in 2012, which amounted to 3.5 million copies in just 24 hours and 6.3 million in its first week.

What does it mean for Blizzard? RoS is no doubt a success, but it still has less than one sixth of the 14.5 million unique players that compromise of its primary user base.

So, why haven’t Diablo III purchasers transferred over Reaper of Souls? They may be waiting to see if this release was better than the last, which was said to have disappointed many with its Error 37 connectivity blues, Real Money Auction House in-game economic ruination and lackluster rewards for combat efforts during dungeon runs.

Also Read: Diablo III’s journey to self-improvement

The numbers for sales are high, but they’re not amazing for Blizzard releases. World of Warcraft: Mists of Pandaria matched Reaper of Souls’ numbers with 2.7 million sold in its launch week. World of Warcraft: Cataclysm sold 3.3 million in 24 hours and 4.7 million in its first month. In that context, the numbers are a lot less impressive.

However, the sales numbers could drastically improve in the coming weeks, when disappointed players come back after hearing about the improvements to the series. For more on Diablo III, check out e27′s review of the action-heavy lootfest.