Retail WoW (the modern version) has 20 years of quality-of-life upgrades, faster leveling, more activities at WoW Classic 20th Anniversary Gold endgame, and improved visuals. This is where new players should start.
Classic WoW is the game as it was in 2004-slower, more difficult, and missing modern conveniences. Some players love it for the nostalgic, old-school feel.
There are also spin-offs:...
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