That being the World of Warcraft expansion's first raid, Uldir, in addition to Battle for Azeroth’s first 20-player coop Warfront - the battle for Stromgarde. Also starting today is the first Mythic Keystone dungeon season with Blizzard also teasing that the next Rated PvP season is scheduled to kick-off soon.

Here's a breakdown.

New Raid: Uldir
Uldir is now open in Normal and Heroic difficulty! Millenia ago, the titans constructed this underground facility to research and quarantine captured specimens, hoping to study the void energy that bound the Old Gods. But something has gone horribly, horribly awry.

Warfront: Stromgarde – The Cycle of War Begins
Get ready for Battle for Azeroth’s first 20-player cooperative Warfront: the battle for Stromgarde! Horde players across the entire game region can now start contributing the supplies necessary to launch an assault on Stromgarde; once the faction has contributed enough, all Horde players in the region will get access to the Warfront. In addition, Alliance players can now access special outdoor content in Arathi Highlands—including a new world boss.

Mythic Keystone Dungeon Season 1
Mythic Keystone dungeons are now available, and the first Mythic Keystone dungeon season has begun! Battle for Azeroth introduces the game’s first-ever seasonal affix, starting with Infested. This seasonal affix—themed after G’huun, the final boss of Uldir—appears on level 10 or higher Keystones, and infects select denizens of each dungeon with corruption to keep players on their toes.

Rated PvP Season 1 – Coming Soon
Battle for Azeroth PvP Season 1 is kicking off soon with new rewards and two new Arenas—Hook Point and The Mugambala. Players can also earn Conquest points to purchase new rewards and earn weekly PvP chests with potent rewards for participating in certain PvP activities.

World of Warcraft: Battle for Azeroth is available now via Blizzard Battle.net, where so far it has become the fastest selling WoW expansion of all time.