Less than 24 hours after the start of its early access release, the first Diablo 4 hotfix is live. The update makes minor nerfs to the Sorcerer and Rogue classes, and makes life more difficult for everyone by increasing the health of monsters at higher World Tiers.
Diablo 4 World Tiers are essentially difficulty levels. But the system is a little more restrictive than many other games: To begin, you only have access to two levels, Adventurer and Veteran—basically your "easy" and "normal" levels. World Tier 3 (Nightmare) and World Tier 4 (Torment) don't become available until after you've completed the campaign.
