The expansion introduced significant additions that many veterans consider a "golden era" of the game:

A new way to track and showcase in-game accomplishments across various activities. Notable Changes in the Classic Version

Players journey through zones like Borean Tundra and Howling Fjord to eventually confront the Lich King in Icecrown Citadel.

The health and damage of enemies in the Naxxramas raid were increased by 30% to provide a more appropriate challenge for modern players.

Wrath of the Lich King Classic™ will thrill both veterans and newcomers with a host of improved features and content to explore: * World of Warcraft·World of Warcraft

Characters from this expansion have since transitioned to as part of the ongoing progression cycle.

Unlike the original's later patches, the automated Dungeon Finder was initially absent to preserve social interaction, though it was eventually added with the Fall of the Lich King update .