Trial Chambers57 blocks
Shipwreck137 blocks
Ocean Ruin147 blocks
Ancient City Seeds for Early Deep Dark Raids
Ancient City Seeds · By the ChunkScan Team · Updated 2026-08-05
Ancient Cities are the only place to find Swift Sneak boots and the disc fragments for the Otherside record, and they hide beneath the Deep Dark at roughly Y=-51. The problem is distance: a city 2,000 blocks away turns a loot run into a chore. Every seed below was pulled from world-generation scans and filtered for cities you can reach early. Because the Warden guards these ruins, knowing the exact structure coordinates before you dig lets you plan a quiet, wool-muffled approach instead of stumbling into a sculk shrieker blind. The seeds are listed below with their nearest city coordinates.
Top matching seeds
Village131 blocks
Ruined Portal286 blocks- Trial Chambers315 blocks
Monument86 blocks- Ruined Portal193 blocks
- Trial Chambers203 blocks
Ancient City0 blocks- Trial Chambers258 blocks
- Trial Chambers345 blocks
- Ancient City244 blocks
- Ruined Portal309 blocks
- Ancient City373 blocks
- Trial Chambers279 blocks
- Trial Chambers288 blocks
- Ruined Portal288 blocks
- Ancient City0 blocks
Ruined Portal N298 blocks- Ruined Portal298 blocks
- Trial Chambers242 blocks
- Village276 blocks
- Ruined Portal305 blocks
- Trial Chambers250 blocks
- Ancient City295 blocks
Trail Ruins301 blocks
Fortress198 blocks- Ocean Ruin224 blocks
- Ancient City227 blocks
What Makes a City Worth the Trip
An Ancient City generates in a Deep Dark biome, which forms in deep, eroded cave regions well below sea level. The structure sits around Y=-51, so you dig straight down from the surface coordinate rather than tunneling sideways. The loot that justifies the risk is concentrated in chests near the central reinforced deepslate structure: Swift Sneak enchanted books, Mending, diamond horse armor, and the fragments needed to craft a Disc 5. What you want in a seed is a short surface distance to the city center plus something else nearby worth doing on the same trip, so the overworld travel isn't wasted.
How Our Scanner Verifies Each City
ChunkScan runs the same Cubiomes world-generation code Minecraft uses, then records the exact placement of every structure it finds. An Ancient City entry in the data is a confirmed generation result at a specific X/Z, not a guess or a lucky screenshot. The distance value is the straight-line spawn-to-structure range in blocks, so you can compare seeds directly. Because we scanned over 1.7 million seeds, only 20 clear the filter for this topic. That scarcity is the point: nearby cities are genuinely rare, and the numbers below are reproducible on any Java world using the listed seed.
Seed -9222864041198461032: City at 80 Blocks
This meadow-spawn seed puts an Ancient City just 80 blocks from spawn, the closest in the set. You land in an open meadow, walk a short way, and dig down to the Deep Dark almost immediately. A second Ancient City sits at 275 blocks if you want to loot two on one world. Trial Chambers appear at 143 blocks and a Ruined Portal at 160, so the early game supports itself: grab copper and trial gear, use the portal to skip building your own, then run both cities. Bring plenty of wool to smother sculk sensors on the way in.
Seed -9223214314906176716: Two Cities Near Spawn
Spawning in an old-growth birch forest, this seed generates two Ancient Cities, at 215 and 362 blocks. Doubling up matters because each city rolls its loot chests independently, so two visits roughly double your odds of pulling Swift Sneak and Mending in a single world. Trial Chambers at 240 and 310 blocks and two Ruined Portals round out the nearby structures. Loot the first city, restock wool and food, then push to the second. Keep your hunger bar full: sprinting drains it, and the Warden emerges the moment a shrieker triggers three times.
Seed -9222824765921714211: Trial Chambers at Spawn
Here the Trial Chambers generate at coordinate 0,0, directly under spawn, with an Ancient City at 260 blocks in a flower forest. Start by farming the Trial Chambers for a mace, trial keys, and ominous loot, which gives you far better survivability before you ever touch the Deep Dark. Three Ruined Portals nearby (368, 380, 381 blocks) cover Nether access if you want Soul Speed or extra gear first. By the time you reach the Ancient City you'll be equipped to handle a Warden encounter or, better, avoid one entirely by moving slowly and crouching past sensors.
Running a City Without Waking the Warden
The Warden is summoned by noise, tracked by three triggered sculk shriekers, so the whole run is about staying quiet. Carry a full stack or two of wool: placing it on or beside a sculk sensor stops it from detecting vibrations. Crouch to reduce your detection radius, avoid sprinting and jumping near sculk, and never break blocks carelessly close to a shrieker. Swift Sneak, once you find it, makes crouch-walking fast enough to be practical. If the warning darkens and hearts appear, back off, because a Warden deals enough damage to kill through Netherite in two hits.
Planning Multi-Structure Trips
Most seeds in this list pair an Ancient City with Trial Chambers and a Ruined Portal within a few hundred blocks. Sequence them: clear Trial Chambers first for combat gear and a mace, use a Ruined Portal for early Nether resources, then do the city last when you're strongest. Seeds like -9223081284056744122 (savanna, city at 262) and -9223278369429608966 (badlands, city at 430) follow this pattern. The badlands seed sits further out, so treat it as a mid-game objective rather than a first-day run. Always note the city's surface coordinate before you leave spawn.
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Frequently Asked Questions
How deep are Ancient Cities in these seeds?
Ancient Cities generate in the Deep Dark biome at roughly Y=-51. The coordinates listed are surface positions, so dig straight down from that X/Z to reach the structure below.
Which seed has the closest Ancient City?
Seed -9222864041198461032 has one just 80 blocks from a meadow spawn, plus a second city at 275 blocks and Trial Chambers at 143, making it the fastest early-game option here.
Are these Java or Bedrock seeds?
All seeds in this list are Java Edition. Structure placement differs between editions, so entering these numbers on Bedrock will not produce the same Ancient City coordinates.