Official WoW site WorldOfWarCraft.com brings word that the upcoming Wrath of the Lich King expansion for Blizzard Entertainment's World of WarCraft MMO will introduce achievements into the world of Azeroth.

"World of Warcraft's achievements system will launch with more than 500 individual achievements covering every aspect of gameplay, including world exploration, PvE, PvP, professions, and character development," wrote the company on their official site. "From the purely whimsical to the truly epic, there will be something for everyone. Some achievements come with in-game rewards such as tabards, vanity pets, and titles. All of these rewards are purely cosmetic and just for fun, but you'll certainly stand out when you proudly display them."

Given the number of hours WoW fanatics spend in their favorite virtual world, Blizzard has already foreseen that 500 achievements probably won't be enough. "And don't fret about running out of achievements anytime soon," continues the site. "The list is easily expandable, so you can expect additional achievements with each new World of Warcraft content update."

Achievement details will be accessible via a new button on your action bar. Clicking the button opens your achievement window, which details your total points for all the achievements you've completed; and a name, description, point value, completion date, and progress bar (if applicable) for each achievement. Similar to quests, players can choose which achievements to actively track.

The evolving achievement list will encompass a variety of different types and categories, ranging from simple assignments such as receiving a haircut to slaying one of each race in PvP factions. "Some achievements are progressive," explains the site, "for example, once you complete an achievement to collect 10 vanity pets, you might next be asked to collect 25. Finally, meta achievements unlock when you complete other achievements -- unlocking all World Exploration achievements ... unlocks a World Explorer meta achievement."

For more details regarding what to expect from WoW's achievements, visit WorldOfWarCraft.com.