IGN gave the Shadow of the Erdtree expansion a rating of 10/10. The review praised the expansion for raising the bar for single-player DLC expansions, condensing the base game's content into a relatively compact 20-25 hour campaign, and providing fantastic new challenges for heavily invested fans to chew on5.
CD Projekt posted a special tweet congratulating FromSoftware for their release of the Shadow of the Erdtree expansion5. The tweet mentioned that for the last eight years, The Witcher 3: Blood and Wine held the title of the best reviewed expansion for a role-playing game, but now Elden Ring's Shadow of the Erdtree wears that crown5.
To access the Shadow of the Erdtree expansion in Elden Ring, players must defeat two key bosses: Starscourge Radahn and Mohg, Lord of Blood1. After defeating these bosses, players can interact with the withered arm coming out of Miquella's cocoon at the back of Mohg's arena to access the DLC and begin the Shadow of the Erdtree expansion.