Keyed Dungeon

Keyed Dungeons are a gameplay feature of Diablo IV.

Overview
Keyed Dungeons introduce greater challenges as their tiers increase through dungeon affixes. The majority of dungeons are real places in the world, and players will know some information about them including what types of monsters, events, and layouts to expect. With this information, as well as the specific dungeon affixes being displayed on the key, players will be able to strategize their approach before going into the dungeon.