"Maximizing XP Gain in Diablo 4: Tips and Tricks"

TL;DR
Farming XP in Diablo 4 can be done by playing the campaign, completing side quests, participating in world events, clearing strongholds, and playing with friends. Anica's Claim, Dead Man's Dredge, Champion's Demise, Iron Hold, and Ruins of Eridu are the best dungeons to farm for XP. Raising the World Tier level should be done after completing the campaign to get the most out of the XP boost.
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