Best 1.18 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 1.18 · 15 verified seeds

Also has nearby
Map of Minecraft seed -5302346115790741153 around spawn Explore this seed
#1

-5302346115790741153

A true survival island — 99% of the surrounding 400 blocks is open ocean, so every resource run starts with a boat.

Spawn
-96, -224 (Stony Shore)
Stronghold
2,286 blocks
  • Ocean Monument276
  • Ruined Portal365

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

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Map of Minecraft seed -1449136880514919327 around spawn Explore this seed
#2

-1449136880514919327

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

Spawn
-48, 428 (Stony Shore)
Stronghold
1,619 blocks
  • Ocean Monument322
  • Ruined Portal393

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

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Map of Minecraft seed -7889639383670199842 around spawn Explore this seed
#3

-7889639383670199842

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

Spawn
-608, -304 (Desert)
Stronghold
2,185 blocks
  • Ruined Portal320
  • Ocean Monument455

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

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Map of Minecraft seed -3952652358475632511 around spawn Explore this seed
#4

-3952652358475632511

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

Spawn
192, -192 (Beach)
Stronghold
1,588 blocks
  • Ruined Portal260
  • Ocean Monument345

Nearby biomes: Deep Ocean · Ocean

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Map of Minecraft seed -4464740650313062104 around spawn Explore this seed
#5

-4464740650313062104

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

Spawn
-272, 80 (Forest)
Stronghold
1,705 blocks
  • Ruined Portal97

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

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Map of Minecraft seed 1154729135099381245 around spawn Explore this seed
#6

1154729135099381245

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

Spawn
0, 96 (Stony Shore)
Stronghold
1,501 blocks
  • Ruined Portal322
  • Ocean Monument324

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

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Map of Minecraft seed -279453886034561086 around spawn Explore this seed
#7

-279453886034561086

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

Spawn
-600, 40 (Birch Forest)
Stronghold
1,742 blocks
  • Ruined Portal162
  • Ocean Monument276

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

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Map of Minecraft seed 1557170266172438228 around spawn Explore this seed
#8

1557170266172438228

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

Spawn
96, -496 (Taiga)
Stronghold
1,705 blocks
  • Ruined Portal193
  • Ocean Monument218

Nearby biomes: Cold Ocean · Deep Cold Ocean

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Map of Minecraft seed -6384340129372918943 around spawn Explore this seed
#9

-6384340129372918943

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

Spawn
-80, -256 (Beach)
Stronghold
1,632 blocks
  • Ruined Portal244
  • Village461

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

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Map of Minecraft seed -6628523517441934301 around spawn Explore this seed
#10

-6628523517441934301

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

Spawn
-608, 628 (Old Growth Birch Forest)
Stronghold
1,740 blocks
  • Ruined Portal194
  • Ocean Monument252

Nearby biomes: Deep Ocean · Ocean

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Map of Minecraft seed -2678556482918591896 around spawn Explore this seed
#11

-2678556482918591896

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

Spawn
-80, 192 (Old Growth Birch Forest)
Stronghold
1,855 blocks
  • Ruined Portal223

Nearby biomes: Deep Ocean · Ocean

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Map of Minecraft seed 6051399403869930452 around spawn Explore this seed
#12

6051399403869930452

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

Spawn
416, -256 (Birch Forest)
Stronghold
2,397 blocks
  • Ruined Portal143

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

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Map of Minecraft seed -3308825153142290418 around spawn Explore this seed
#13

-3308825153142290418

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

Spawn
-176, 16 (Snowy Beach)
Stronghold
2,222 blocks
  • Ruined Portal308

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

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Map of Minecraft seed -8754915841618373616 around spawn Explore this seed
#14

-8754915841618373616

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

Spawn
16, 16 (Desert)
Stronghold
2,668 blocks
  • Ruined Portal36
  • Ocean Monument339

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

Open in Seed Map →
Map of Minecraft seed -5971567932365725170 around spawn Explore this seed
#15

-5971567932365725170

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

Spawn
-56, -688 (Plains)
Stronghold
1,573 blocks
  • Ruined Portal206
  • Ocean Monument315

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

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About these 1.18 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.

1.18 (Caves & Cliffs Part II) rewrote terrain generation completely: world height stretched to Y −64…319, six new mountain biomes, and cave systems bigger than anything before it. It's also where modern seeds begin — a 1.17 seed generates a totally different world — and 1.18.2 is still a heavily-played modpack version. Every seed below was verified on 1.18 generation itself.

Verified for Java Edition 1.18 (Caves & Cliffs Part II). Biomes, terrain and structure locations are identical across 1.18 – 1.18.2, so 1.18.2 modpack worlds match these maps.

Playing the current version instead? See the latest island seeds — or the same list for 26.3 · 1.20 · 1.19 · 1.16. All 1.18 lists live under best 1.18 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 1.18'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 1.18 line — 1.18 through 1.18.2, including 1.18.2 modpacks: biomes, terrain and structure positions are identical across the patches (1.18.2 only fixed cosmetic generation bugs like underwater snow patches). Later versions keep the same terrain engine but add structures and tweak placements (1.19's ancient cities, 1.20's trail ruins), so verify on our newer lists if you're playing past 1.18.
Do these seeds work on Bedrock Edition?
No — Java and Bedrock generate different worlds from the same seed. These lists are Java Edition only.