Knowing which level unlocks certain vendors or abilities in Diablo 4 is a good place to start, especially if you want to break down your leveling into manageable chunks so you can look forward to the rewards that certain level milestones offer. Even the most battle-hardened nephalem can become weary without an incentive to push them through those next few levels.
There are plenty of systems in Diablo 4, whether that's tweaking your build with item enchantments, progressing through dungeons to unlock an Aspect and imprint it onto a piece of gear, or simply getting your first mount, so it makes sense that you'd want to know when you gain access to these things. So, with that in mind, here's what level you need to be to unlock Diablo 4's major systems
