In World of Warcraft, players assume the roles of legendary heroes and interact with thousands of other players online as they explore and adventure across a vast world.

Whether journeying together or questing on their own, players will engage in heroic battles, develop friendships, forge alliances, and compete with enemies for power and glory.

The game features customizable character classes with thousands of weapons, spells and abilities. With an innovative, easy-to-use interface, an action-packed combat system, and thousands of quests that build an immersive storyline, "World of Warcraft" offers a MMORPG experience that will appeal to both veteran and casual players alike.

This weekend marks World of Warcraft’s 10th anniversary, and we’d like to thank you for exploring Azeroth with us for all these years. To help celebrate, tomorrow we’re unleashing some great anniversary-themed in-game content for you to enjoy, whether you’re taking a stroll down memory lane or experiencing some of WoW’s defining conflicts for the very first time.

To make sure everyone has plenty of opportunity to take part in the celebration—while still being able to enjoy everything Warlords of Draenor has to offer—all of the anniversary content launching tomorrow will be available until the beginning of 2015. Check out the details below—we’ll see you there!

When: Friday, November 21–Tuesday, January 6, 2015 at 10 a.m. PST

A Fiery New Friend: Everyone who logs in during the anniversary period will receive a feisty, fiery new Molten Corgi to love, pet, and call their own. Cuddle at your own risk.

Maximum Molten Core: One of WoW’s classic 40-player raids, Molten Core, will be available in Raid Finder for level 100 players (average item level 615 required). Making it through the underground gauntlet and defeating Ragnaros will reward players with a Core Hound mount and a Warlords of Draenor Raid Finder–quality helm—100% guaranteed! For a walkthrough of the non–Raid Finder version of the dungeon, check out our earlier Revisiting Heroism’s Past – Molten Core guide.

Southshore vs. Tarren Mill—The Battle Continues: To recapture the feeling of the endless tug-of-war of early WoW PvP, we’re opening a special Team Deathmatch–style Battleground based on the timeless struggle between Southshore and Tarren Mill. We’ll have two different brackets for players to take part in: one for level 90–99 characters and another for level 100. Unlike the old days of Tarren Mill vs. Southshore, this Battleground has a clearly defined victor, so you’ll need to work as a team or face crushing defeat. A win will gain you a shiny new title: either Tarren Mill Terror for the Alliance or Southshore Slayer for the Horde.