World of Warcraft is
- 5,500,000 – Lines of code
- 1,500,000 – Art assets
- 33,681 – Production tasks
- 70,167 – Spells
- 37,537 – NPCs (non-player characters)
- 27 – Hours of music
- 2600 – Quests in the original World of Warcraft
- 2700+ - Additional quests in WoW: The Burning Crusade
- 2350+ - Additional quests in WoW: Wrath of the Lich King
- 7650+ - Quests total (how many have you finished?)
- 4,449,680,399 – Achievements earned by players since their implementation (this figure is already a few days old, and therefore outdated)
Patches:
- 4.7– Petabytes (4700 terabytes) of data delivered to players through patches
- 126 – Different versions issued of every patch, including those streamed to players and issued as self-extracting executables
- Half – Of every patch’s size is audio
Servers:
- 13,250 – Server blades running WoW servers, with a total of
- 75,000 – CPU cores, and
- 112.5 – Terabytes of RAM
Support:
- 179,184 – Bugs tracked by Blizzard (most of which have been fixed, according to the presenters)
- 2,056 – Game masters
- 340 – Employees in the billing department
- 2,584 – Total customer service employees
International:
- 10 – Languages into which WoW is translated
Blizzard Online:
- 12,000,000+ – Battle.net accounts
- 900,000+ - Files on WorldofWarcraft.com
Source: World of Warcraft by the Numbers by The Game Reviews