Best 1.20 Survival Island Seeds

Spawn on a real island — at least 80% of the surrounding 400 blocks is open ocean on every seed here.

Java Edition 1.20 · 15 verified seeds

Also has nearby
Map of Minecraft seed 5296174175821841949 around spawn Explore this seed
#1

5296174175821841949

A true survival island — 98% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
48, -176 (Old Growth Birch Forest)
Stronghold
2,233 blocks
  • Ruined Portal148
  • Ocean Monument351

Nearby biomes: Ocean · Deep Ocean

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Map of Minecraft seed 4940845767132412747 around spawn Explore this seed
#2

4940845767132412747

A true survival island — 98% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
540, -204 (Beach)
Stronghold
875 blocks
  • Ruined Portal211
  • Ocean Monument402

Nearby biomes: Deep Lukewarm Ocean · Lukewarm Ocean

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Map of Minecraft seed -9195766126343001231 around spawn Explore this seed
#3

-9195766126343001231

A true survival island — 98% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
-176, 352 (Beach)
Stronghold
1,946 blocks
  • Ruined Portal264
  • Ocean Monument380

Nearby biomes: Deep Cold Ocean · Cold Ocean · Frozen Ocean · Deep Frozen Ocean · Snowy Plains

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Map of Minecraft seed -373795263900098807 around spawn Explore this seed
#4

-373795263900098807

A true survival island — 98% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
32, -64 (Forest)
Stronghold
1,801 blocks
  • Ruined Portal209
  • Ocean Monument395

Nearby biomes: Deep Ocean · Ocean · Lukewarm Ocean · Deep Lukewarm Ocean

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Map of Minecraft seed -2698553384061941869 around spawn Explore this seed
#5

-2698553384061941869

A true survival island — 98% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
96, 112 (Plains)
Stronghold
1,860 blocks
  • Ruined Portal268
  • Ocean Monument339

Nearby biomes: Deep Lukewarm Ocean · Lukewarm Ocean · Deep Ocean · Ocean

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Map of Minecraft seed 3426601198624150121 around spawn Explore this seed
#6

3426601198624150121

A true survival island — 98% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
352, -112 (Stony Shore)
Stronghold
2,422 blocks
  • Ocean Monument295
  • Ruined Portal445

Nearby biomes: Deep Lukewarm Ocean · Lukewarm Ocean · Ocean · Deep Ocean

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Map of Minecraft seed 647468435707476623 around spawn Explore this seed
#7

647468435707476623

A true survival island — 97% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
-156, 564 (Beach)
Stronghold
1,984 blocks
  • Ruined Portal278
  • Ocean Monument357

Nearby biomes: Ocean · Deep Ocean

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Map of Minecraft seed 1188653222203147276 around spawn Explore this seed
#8

1188653222203147276

A true survival island — 97% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
344, -184 (Windswept Savanna)
Stronghold
1,524 blocks
  • Ocean Monument299
  • Ruined Portal340

Nearby biomes: Deep Ocean · Deep Cold Ocean · Ocean

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Map of Minecraft seed 8529009853885482898 around spawn Explore this seed
#9

8529009853885482898

A true survival island — 96% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
-192, -272 (Birch Forest)
Stronghold
1,522 blocks
  • Ruined Portal195
  • Ocean Monument419

Nearby biomes: Cold Ocean · Deep Ocean · Ocean · Deep Cold Ocean

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Map of Minecraft seed 7520968149336687681 around spawn Explore this seed
#10

7520968149336687681

A true survival island — 96% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
416, 80 (Beach)
Stronghold
2,621 blocks
  • Ocean Monument286
  • Ruined Portal288

Nearby biomes: Deep Cold Ocean · Cold Ocean · Deep Ocean · Ocean

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Map of Minecraft seed -9006214535372557307 around spawn Explore this seed
#11

-9006214535372557307

A true survival island — 95% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
160, -128 (Plains)
Stronghold
2,493 blocks
  • Ruined Portal285
  • Ocean Monument392
  • Woodland Mansion969

Nearby biomes: Cold Ocean · Deep Cold Ocean · Ocean · Deep Ocean · Stony Shore

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Map of Minecraft seed -8255328208231456897 around spawn Explore this seed
#12

-8255328208231456897

A true survival island — 95% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
0, 448 (Desert)
Stronghold
1,979 blocks
  • Ruined Portal229

Nearby biomes: Warm Ocean · Lukewarm Ocean · Savanna

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Map of Minecraft seed 2540342458440586440 around spawn Explore this seed
#13

2540342458440586440

A true survival island — 95% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
48, -96 (Forest)
Stronghold
2,494 blocks
  • Ocean Monument205
  • Ruined Portal308

Nearby biomes: Ocean · Deep Ocean

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Map of Minecraft seed 550125043361588607 around spawn Explore this seed
#14

550125043361588607

A true survival island — 95% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
80, -576 (Flower Forest)
Stronghold
2,549 blocks
  • Ruined Portal240
  • Ocean Monument316

Nearby biomes: Deep Cold Ocean · Ocean · Deep Ocean · Cold Ocean

Open in Seed Map →
Map of Minecraft seed -8440118187734631803 around spawn Explore this seed
#15

-8440118187734631803

A true survival island — 95% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
-32, 448 (Stony Shore)
Stronghold
1,686 blocks
  • Ocean Monument279
  • Ruined Portal311

Nearby biomes: Frozen Ocean · Deep Frozen Ocean · Snowy Taiga · Stony Shore

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About these 1.20 seeds

These aren't "island-ish" seeds: for each one, the spawn point sits on land with ocean covering at least 80% of everything within 400 blocks. The percentage on each card is measured, so you know exactly how isolated the start is.

1.20 (Trails & Tales) added cherry groves and buried trail ruins to world generation, and 1.20.1 is one of the most-pinned modpack versions — plenty of worlds are still being started on it. Every seed below was verified on 1.20's own generation, not back-ported from a newer list: 1.21 changed worldgen (trial chambers, then the pale garden), so a list verified there can't honestly claim these coordinates.

Verified for Java Edition 1.20 (Trails & Tales). Biomes, terrain and structures are identical across 1.20 – 1.20.6, so any 1.20.x world matches these maps — the only generation change in the patches (1.20.2 made diamond ore more common in the deepslate layers) doesn't affect anything these cards measure.

Playing the current version instead? See the latest island seeds — or the same list for 26.3 · 1.19 · 1.18 · 1.16. All 1.20 lists live under best 1.20 seeds.

Frequently asked questions

How is this different from the main island seeds page?
Same criteria, different worldgen: these are separate seeds found and verified on 1.20's generation. Our main island seeds list is verified on the current version, and seeds don't transfer exactly between the two.
Which releases do these seeds work on?
The whole 1.20 line — 1.20 through 1.20.6, including 1.20.1 modpacks: biomes, terrain and structure positions are identical across the patches. (The one generation change, 1.20.2 making diamond ore more common in the deepslate layers, doesn't move anything on these cards.) On 1.21+ the same seed generates almost the same world, but trial chambers (1.21) and pale gardens (1.21.4) appear and a few placements shift, so use our main lists for current versions.
Do these seeds work on Bedrock Edition?
No — Java and Bedrock generate different worlds from the same seed. These lists are Java Edition only.