Ancient City

Ancient cities are massive structures that generate exclusively in deep dark biomes at Y level -51. They are the largest naturally generated structure in the game and feature palatial layouts with long corridors, ruined buildings, and a central monument built from reinforced deepslate—a block unobtainable in survival mode.

The city is filled with sculk blocks, soul lanterns, and wool carpets that dampen vibrations. Sculk shriekers are common and can summon the Warden. Beneath the central frame, redstone contraptions and hidden basements contain working circuits like piston doors and filters activated by sculk sensors.

Loot chests contain exclusive items such as echo shards, disc fragments, and the Swift Sneak enchantment, along with enchanted gear, rare redstone components, and a high chance to find enchanted golden apples. Two unique armor trims, Ward and Silence, can also be found here. Additional “ice box” chests may include snowballs, packed ice, and food items.

Ancient cities offer unique blocks, redstone features, and loot, but navigating them is dangerous due to the presence of shriekers and the Warden. These structures cannot overlap but may generate adjacent to one another in large deep dark cave systems.