As players reach Nightmare difficulty in Diablo 4, they'll face tougher foes with deadlier abilities. To prepare for these challenges, adventurers can delve into some of the game's most lucrative dungeons. Within lie fearsome bosses and treasure troves of loot. These seven underground complexes reward raid parties with bountiful experience and choice salvage for crafting powerful upgrades. With the right preparation and to buy Diablo 4 Gold for consumables, even Nightmare's depths become conquerable.

Cavern of Bones (Dry Steppes, Kehjistan)

Deep below the arid badlands roams an army of skeletal warriors and abominations. Smash through twisting catacombs to reach the Cavern's queen, claiming her hoard of legendaries. Groups receive 50,000 shared experience for victory, along with the elusive "Cache of Bones" drop containing reinforced rare D4 Items.

Maraudon's Catacombs (Scosglen)

In dark tunnels underneath Scosglen, a death cult performs blasphemous rituals to summon greater demons. Smite their high priest Gurthang for a 15% legendary weapon drop. Each boss phase rewards a quarter of a character level, making this ideal for efficient pre-Nightmare grinding.

Halls of the Assassins (Caldeum Jungles)

Wade through poison darts and ambushes within this sprawling Strongbox. Survive assassination attempts and dethrone the Shadow Lord for a high chance at legendary jewelry with empowered affixes. Solid experience gain, too, for leveling combat abilities before the challenge ahead.

Shadow temple of Mephala (Golghar Wastelands)

Within winding catacombs dedicated to the spider goddess lies her dark avatar. Groups slay Mephala herself for a guaranteed two legendary drops and the "Web of Lies" sigil granting potent charm powers. At 250,000 total experience, it's worth the trek across treacherous lands.

Other rewarding locations include the Sunken Library of Caldeum for set D4 items, Ruined Fane strongbox for gem crafting materials, and the Broken Ossuary offering chance-on-kill rings and amulets. By braving Nightmare's deepest tests, adventurers consistently improve their strength to later overcome its terrors across Sanctuary.

Teamwork and Preparation

With teammates on comms and to buy Diablo 4 gold to stock consumables like health potions, even these terrible dungeons fall before co-ordinated attacks. Approach them with utmost care and build the might to challenge Diablo 4's full Nightmare terror.