World of Warcraft: Cataclysm is the third expansion for the MMORPG “World of Warcraft,” released in December 2010 by Blizzard Entertainment. The expansion centers around the return of Deathwing, the corrupted dragon aspect, causing a catastrophic event known as the Cataclysm that reshapes the world of Azeroth. Key features include the introduction of new playable races (Worgen and Goblins), the ability to fly in Azeroth, revamped zones, a level cap increase to 85, and new dungeons and raids. The expansion also brought changes to class mechanics, introduced the Archeology profession, and expanded the guild system with achievements and perks. While opinions on the expansion vary, it played a significant role in evolving the “World of Warcraft” universe.