Leveling up your character quickly in Diablo 4 Season 4 is key to unlocking most of the new endgame content, like The Pit, Masterworking, and Torment Bosses. Luckily, we already know how to reach level 100 as quickly as possible thanks to the PTR.
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The above strategy is based on the experiences of many players in Season Four during the Diablo 4 PTR. While the live servers may differ slightly from the tests, the changes Blizzard made to Helltides are a core component of Season Four and will not be changing. This means that you can now start farming Helltides as soon as you reach level one in World Tier Two, which is recommended over old dungeon methods.
Additionally, you’ll want to level up your World Tier as quickly as your build and gear allow. The bonus XP you get from higher World Tiers has increased significantly compared to previous seasons. So if you have good gear and a great leveling build to start with, you should push for early Cathedral of Light and Fallen Temple capstone dungeon clears to level up to a higher World Tier as quickly as possible and enjoy the huge XP bonus they provide.
You want to start your Seasonal Character in World Tier Two so you can immediately get 50 percent extra XP from clearing content. Then you should get the Seasonal Quest, because the Iron Wolves quests and the Honor system give you special seasonal bonuses in Season Four. Follow the quest until you are sent to the Helltides.