Ancient Cities are awesome to explore in Minecraft 1.21. They’re loaded with cool blocks, treasures, unique enchantments like Swift Sneak, and exclusive items. Problem is, finding them can be a pain without a good seed to start with.

Here’s a list of the top 10 seeds for Ancient Cities in Minecraft 1.21, complete with coordinates to get you straight to the good stuff.

1. Stronghold in Ancient City (Java)

Stronghold In Ancient City

This seed is wild—it’s got a full Stronghold right inside an Ancient City, which is super rare. You can check out both, grab loot from chests, poke around libraries, and even fire up the End Portal. Once you’re done, it’s a perfect spot to turn into a sweet underground base.

  • Seed Code: -6542427500181432213
  • Ancient City Coordinates: -1036, -42, 1124
  • Stronghold Coordinates: -1036, -42, 1124 (right on top of each other)
  • Spawn Biome: Beach
  • Note: Still works great in 1.21, with the Stronghold and Ancient City perfectly lined up.

2. Ancient Dripstone City (Java)

All Cave Biomes At Once

This seed drops an Ancient City inside a dripstone cave in the Deep Dark, which looks amazing with the two biomes mixed together. The Warden’s still patrolling, but cave mobs might pull its attention, giving you a shot to sneak away or grab some loot.

  • Seed Code: 2817169686383787731
  • Ancient City Coordinates: 488, -40, -600
  • Spawn Biome: Forest
  • Note: The dripstone and Deep Dark combo holds up in 1.21, with no major changes.

3. 10 Ancient Cities in Deep Dark (Java)

19 Cities At Once

Normally, you get one Ancient City per Deep Dark biome. This seed says forget that—it jams 10 Ancient Cities into one huge Deep Dark biome, making a massive underground city network. You can bounce between them to scoop up all the loot you want.

  • Seed Code: 5146159088207717555
  • Closest Ancient City Coordinates: -728, -44, -168
  • Spawn Biome: Plains
  • Note: The giant Deep Dark and city count are still solid in 1.21, though you might need to wander a bit further due to small terrain changes.

4. Stronghold next to Ancient City with Mineshaft (Bedrock)

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This Bedrock seed is like the Java Stronghold one but with a twist: the Stronghold sits above the Ancient City, and a Mineshaft connects them. You can raid all three for loot and maybe turn them into a huge base linking the surface to the underground.

  • Seed Code: 3621868329803409107
  • Stronghold Coordinates: -1452, -30, -860
  • Ancient City Coordinates: -1448, -44, -632
  • Spawn Biome: Dark Forest
  • Note: Works smoothly in 1.21 Bedrock, with the Mineshaft still tying everything together.

5. 19 Ancient Cities (Bedrock)

Ten Ancient Cities At Once

If you’re all about Ancient Cities, this seed’s for you. It puts 19 of them within a few hundred blocks of spawn. Some are standard, while others mix with nearby biomes for some cool scenery.

  • Seed Code: -2193811972289072796
  • Spawn Biome: Jagged Peaks
  • Note: The city count is still good in 1.21, but coordinates might shift slightly with terrain updates. Explore near spawn or use a biome finder.

6. Find All Cave Biomes in 1 Place (Bedrock)

This seed has a neat cave setup with Deep Dark, Dripstone, and Lush Cave biomes all in one spot. The Ancient City’s in the Deep Dark part, with Dripstone and Lush elements making it a fun place to explore.

  • Seed Code: 5114865292213250711
  • Ancient City Coordinates: 584, -44, 168
  • Spawn Biome: Taiga
  • Note: The cave biome mix is still intact in 1.21, great for seeing Minecraft’s underground variety.

7. Ancient City Under Massive Lush Cave (Java)

Ancient Dripstone City

This 1.21 seed puts an Ancient City right under a huge Lush Cave. The bright vines and glow berries light up your path to the city, but the Warden keeps things intense.

  • Seed Code: 789324156982341
  • Ancient City Coordinates: 312, -43, -456
  • Spawn Biome: Meadow
  • Note: The Lush Cave makes this seed stand out, and it’s built for 1.21’s terrain.

8. Double Ancient City Merge (Bedrock)

Ancient City With Strong Hold And Mineshaft

This Bedrock seed has two Ancient Cities fused into one giant structure in a Deep Dark biome. It’s double the loot, but also double the risk with multiple Wardens possible.

  • Seed Code: -392184750128493
  • Ancient City Coordinates: -824, -44, 392
  • Spawn Biome: Savanna
  • Note: The merged cities are rare and work great in 1.21 for a big adventure.

9. Ancient City with Exposed Trial Chambers (Java)

New for 1.21, this seed places an Ancient City near a partly exposed Trial Chamber. You get the Deep Dark’s sculk vibes plus the Trial Chamber’s copper and tuff, with loot like Ominous Bottles to grab.

  • Seed Code: 6238914035112897
  • Ancient City Coordinates: -648, -42, 104
  • Trial Chamber Coordinates: -680, -30, 120
  • Spawn Biome: Birch Forest
  • Note: Perfect for checking out 1.21’s Trial Chambers alongside an Ancient City.

10. Triple Ancient City Cluster (Bedrock)

This seed gives you three Ancient Cities close together in one Deep Dark biome. It’s great for looting a ton without traveling far, with varied terrain to keep things interesting.

  • Seed Code: 184729305712398
  • Closest Ancient City Coordinates: 632, -44, -520
  • Spawn Biome: Swamp
  • Note: The cluster’s still tight in 1.21, with minor terrain tweaks not messing it up.