Considering Infernal Hordes are the new activity in Diablo 4's latest season, it takes a little while to unlock them. Turns out that dropping into hell to fight wave after wave of the demonic host is somewhat of an endgame activity—who'd have thought it? Still, it's a fun new game mode with roguelike elements and it's pretty damn lucrative.
If you manage to weather every wave and gather a truckload of Burning Aether, you can dump it into a series of chests at the end of the activity for legendary items, rare materials, and even gold if you're bashing your head against the masterworking grind. Here I'll explain how to unlock the Infernal Hordes activity, how to get the Infernal Compass items you need to attempt it, and a brief rundown of how the whole shebang actually works.
