Best 1.21.4 Survival Island Seeds

Land starts surrounded by at least 80% sampled ocean within 400 blocks. Compare the coast and check starting-island trees before playing.

Java Edition 1.21.4 · 50 seeds checked against category criteria

These seeds use Java 1.21.4 (The Garden Awakens) generation. Browse all 1.21.4 categories →

Choose your starting world

Use the map to compare the surrounding coast, then check the starting-island tree report. A nearby structure marker may be underwater or on another island.

Every seed meets this rule: Estimated spawn is on land, with ocean biomes at 80% or more of the sampled points within 400 blocks.

Before you create the world

Ocean share is sampled, not a measurement of the exact coastline. Narrow land bridges may be missed. Biome colors do not confirm trees, supplies or a playable survival start.

Computed for Java 1.21.4. Spawn is estimated, surface biomes are sampled at Y 63, and structure markers are predictions. Use default world generation and confirm important locations in-game.

A few places to start

Picks from this list, selected by recorded distances. Map previews show biome predictions.

  • Ocean-focused start

    #1 · 1175269954872581905

    A top-ranked ocean-focused pick from this catalog. Tree availability needs a separate in-game check.

    Explore seed →
  • Village nearby

    #8 · -7647442435426177427

    Structure predicted 16 blocks from estimated spawn · X -944, Z 256

    Explore seed →
  • Ruined portal nearby

    #9 · 6116401780501693580

    Structure predicted 16 blocks from estimated spawn · X -624, Z 0

    Explore seed →

More starts: Mushroom islands · Shipwreck starts. Search your own conditions →

All 50 seeds for Java 1.21.4

Looking for a no-tree survival challenge? Check “Starting island trees” on each card. “Not verified” means tree cover has not been checked in-game for this version. Biome maps do not confirm individual trees. Treeless islands may still have wood in structures.

Also has nearby
Predicted biome map of Java 1.21.4 seed 1175269954872581905 around estimated spawn Explore this seed
#1

1175269954872581905

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-272, 160 (Plains)
Stronghold
2,022 blocks

Starting island trees: Not verified

  • Ruined Portal86
  • Trial Chambers91
  • Ocean Monument449

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 2774113065559852822 around estimated spawn Explore this seed
#2

2774113065559852822

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
32, 416 (Desert)
Stronghold
2,006 blocks

Starting island trees: Not verified

  • Trial Chambers161
  • Ocean Monument322
  • Ruined Portal382

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -3983320407515978034 around estimated spawn Explore this seed
#3

-3983320407515978034

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-464, 128 (Taiga)
Stronghold
1,872 blocks

Starting island trees: Not verified

  • Ruined Portal107
  • Trial Chambers167
  • Ocean Monument218

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 5806059778629062359 around estimated spawn Explore this seed
#4

5806059778629062359

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-144, 480 (Taiga)
Stronghold
2,448 blocks

Starting island trees: Not verified

  • Trial Chambers209
  • Ocean Monument318
  • Ruined Portal354

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 4613990586923175748 around estimated spawn Explore this seed
#5

4613990586923175748

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
432, -208 (Plains)
Stronghold
2,361 blocks

Starting island trees: Not verified

  • Trial Chambers179
  • Ruined Portal195
  • Ocean Monument225

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 6892248017327048542 around estimated spawn Explore this seed
#6

6892248017327048542

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-32, 448 (Taiga)
Stronghold
3,007 blocks

Starting island trees: Not verified

  • Ocean Monument226
  • Trial Chambers266
  • Ruined Portal385

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -1180765577177213133 around estimated spawn Explore this seed
#7

-1180765577177213133

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-176, 128 (Snowy Plains)
Stronghold
2,328 blocks

Starting island trees: Not verified

  • Ruined Portal286
  • Trial Chambers288

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -7647442435426177427 around estimated spawn Explore this seed
#8

-7647442435426177427

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-928, 256 (Desert)
Stronghold
1,670 blocks

Starting island trees: Not verified

  • Village16
  • Trial Chambers143
  • Ruined Portal279

Nearby biomes: Warm Ocean · Desert

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 6116401780501693580 around estimated spawn Explore this seed
#9

6116401780501693580

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-608, 0 (Bamboo Jungle)
Stronghold
1,525 blocks

Starting island trees: Not verified

  • Ruined Portal16
  • Trial Chambers363
  • Ocean Monument443

Nearby biomes: Lukewarm Ocean · Deep Lukewarm Ocean · Jungle

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -7369820394510507984 around estimated spawn Explore this seed
#10

-7369820394510507984

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-112, -48 (Beach)
Stronghold
2,651 blocks

Starting island trees: Not verified

  • Ocean Monument279
  • Trial Chambers285
  • Village387
  • Ruined Portal464

Nearby biomes: Cold Ocean · Deep Cold Ocean · Beach · Taiga

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -8133797279192087002 around estimated spawn Explore this seed
#11

-8133797279192087002

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
304, 416 (Plains)
Stronghold
1,608 blocks

Starting island trees: Not verified

  • Ocean Monument231
  • Trial Chambers262
  • Ruined Portal272

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -6949381822112070054 around estimated spawn Explore this seed
#12

-6949381822112070054

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
912, 64 (Desert)
Stronghold
1,472 blocks

Starting island trees: Not verified

  • Ocean Monument236
  • Trial Chambers273
  • Ruined Portal279

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -4372329740230521829 around estimated spawn Explore this seed
#13

-4372329740230521829

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-416, 192 (Savanna)
Stronghold
2,280 blocks

Starting island trees: Not verified

  • Ruined Portal158
  • Trial Chambers236

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -872392171666714256 around estimated spawn Explore this seed
#14

-872392171666714256

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
288, 160 (Windswept Savanna)
Stronghold
2,310 blocks

Starting island trees: Not verified

  • Ruined Portal193
  • Trial Chambers329

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 616955610499811724 around estimated spawn Explore this seed
#15

616955610499811724

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-256, -192 (Birch Forest)
Stronghold
1,821 blocks

Starting island trees: Not verified

  • Ocean Monument223
  • Trial Chambers290
  • Ruined Portal320

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 42378659328287148 around estimated spawn Explore this seed
#16

42378659328287148

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-1184, 48 (Snowy Taiga)
Stronghold
1,473 blocks

Starting island trees: Not verified

  • Trial Chambers182
  • Ruined Portal276

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 6282239816810090627 around estimated spawn Explore this seed
#17

6282239816810090627

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-48, 32 (Stony Shore)
Stronghold
1,649 blocks

Starting island trees: Not verified

  • Trial Chambers170
  • Ocean Monument352
  • Ruined Portal372

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 5212122933733990873 around estimated spawn Explore this seed
#18

5212122933733990873

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-416, 32 (Bamboo Jungle)
Stronghold
1,616 blocks

Starting island trees: Not verified

  • Trial Chambers129
  • Ruined Portal209
  • Ocean Monument328

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 3971846121413628691 around estimated spawn Explore this seed
#19

3971846121413628691

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
176, -448 (Plains)
Stronghold
1,507 blocks

Starting island trees: Not verified

  • Trial Chambers23
  • Ruined Portal80
  • Ocean Monument138

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -4864608134690593187 around estimated spawn Explore this seed
#20

-4864608134690593187

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-208, -128 (Taiga)
Stronghold
1,968 blocks

Starting island trees: Not verified

  • Ocean Monument195
  • Ruined Portal365
  • Trial Chambers390

Nearby biomes: Cold Ocean · Deep Cold Ocean · Beach · Taiga

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 1233044411332281121 around estimated spawn Explore this seed
#21

1233044411332281121

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-608, -480 (Beach)
Stronghold
944 blocks

Starting island trees: Not verified

  • Ruined Portal227
  • Trial Chambers240
  • Ocean Monument339

Nearby biomes: Cold Ocean · Deep Cold Ocean · Deep Ocean · Taiga · Forest

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -1193556257812423534 around estimated spawn Explore this seed
#22

-1193556257812423534

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
0, 0 (Savanna)
Stronghold
1,454 blocks

Starting island trees: Not verified

  • Ruined Portal122
  • Trial Chambers176
  • Ocean Monument324

Nearby biomes: Lukewarm Ocean · Ocean · Deep Lukewarm Ocean · Deep Ocean · Stony Shore · Savanna

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 3774152910549885988 around estimated spawn Explore this seed
#23

3774152910549885988

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-544, 48 (Plains)
Stronghold
1,213 blocks

Starting island trees: Not verified

  • Ruined Portal36
  • Trial Chambers283
  • Ocean Monument432

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 9016722422458526121 around estimated spawn Explore this seed
#24

9016722422458526121

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-176, 0 (Sparse Jungle)
Stronghold
2,819 blocks

Starting island trees: Not verified

  • Ocean Monument338
  • Trial Chambers345
  • Ruined Portal355

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -1543730230697275230 around estimated spawn Explore this seed
#25

-1543730230697275230

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
0, -80 (Old Growth Birch Forest)
Stronghold
2,539 blocks

Starting island trees: Not verified

  • Trial Chambers306
  • Ruined Portal322
  • Ocean Monument385
  • Pillager Outpost426

Nearby biomes: Ocean · Deep Ocean · Forest · Beach

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 6870578677702025785 around estimated spawn Explore this seed
#26

6870578677702025785

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
320, 272 (Dark Forest)
Stronghold
1,923 blocks

Starting island trees: Not verified

  • Trial Chambers68
  • Ruined Portal268
  • Ocean Monument415

Nearby biomes: Deep Ocean · Ocean · Dark Forest · Beach

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 5451094237546080972 around estimated spawn Explore this seed
#27

5451094237546080972

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
0, -32 (Plains)
Stronghold
2,542 blocks

Starting island trees: Not verified

  • Trial Chambers338
  • Ruined Portal339
  • Ocean Monument351

Nearby biomes: Deep Cold Ocean · Cold Ocean · Ocean · Deep Ocean · Forest · Beach

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -7704453666885048302 around estimated spawn Explore this seed
#28

-7704453666885048302

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
432, 240 (Snowy Taiga)
Stronghold
2,709 blocks

Starting island trees: Not verified

  • Ruined Portal248
  • Trial Chambers253

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 1390219257773923000 around estimated spawn Explore this seed
#29

1390219257773923000

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-672, -112 (Plains)
Stronghold
2,082 blocks

Starting island trees: Not verified

  • Ruined Portal152
  • Trial Chambers362
  • Ocean Monument410

Nearby biomes: Deep Lukewarm Ocean · Lukewarm Ocean · Deep Ocean · Ocean · Beach · Plains

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -7744494616039220452 around estimated spawn Explore this seed
#30

-7744494616039220452

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
0, 0 (Plains)
Stronghold
1,471 blocks

Starting island trees: Not verified

  • Ancient City32
  • Ruined Portal298
  • Trial Chambers316

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 1793588695123687632 around estimated spawn Explore this seed
#31

1793588695123687632

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
192, 464 (Beach)
Stronghold
1,906 blocks

Starting island trees: Not verified

  • Trial Chambers226
  • Ocean Monument268
  • Ruined Portal275

Nearby biomes: Deep Lukewarm Ocean · Ocean · Lukewarm Ocean · Beach · Sparse Jungle

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 8000202809590049761 around estimated spawn Explore this seed
#32

8000202809590049761

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
0, 288 (Old Growth Birch Forest)
Stronghold
2,062 blocks

Starting island trees: Not verified

  • Ruined Portal58
  • Trial Chambers97
  • Ocean Monument392

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 2899452635525149754 around estimated spawn Explore this seed
#33

2899452635525149754

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-512, -320 (Forest)
Stronghold
2,023 blocks

Starting island trees: Not verified

  • Ruined Portal101
  • Trial Chambers272
  • Village491

Nearby biomes: Ocean · Lukewarm Ocean · Deep Ocean

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -4047621376206836943 around estimated spawn Explore this seed
#34

-4047621376206836943

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
160, -16 (Jungle)
Stronghold
1,630 blocks

Starting island trees: Not verified

  • Ruined Portal129
  • Trial Chambers353
  • Village475

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 8478030121047133540 around estimated spawn Explore this seed
#35

8478030121047133540

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-48, 16 (Savanna)
Stronghold
2,164 blocks

Starting island trees: Not verified

  • Trial Chambers165
  • Ruined Portal218
  • Ocean Monument365

Nearby biomes: Lukewarm Ocean · Deep Lukewarm Ocean · Savanna · Beach

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -4373570740901177401 around estimated spawn Explore this seed
#36

-4373570740901177401

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
0, 16 (Forest)
Stronghold
1,451 blocks

Starting island trees: Not verified

  • Ruined Portal274
  • Trial Chambers294
  • Ocean Monument391

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -8778964063994218731 around estimated spawn Explore this seed
#37

-8778964063994218731

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-16, -16 (Desert)
Stronghold
2,003 blocks

Starting island trees: Not verified

  • Ruined Portal215
  • Trial Chambers387

Nearby biomes: Warm Ocean · Desert

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 3326037294012138331 around estimated spawn Explore this seed
#38

3326037294012138331

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
288, -16 (Old Growth Birch Forest)
Stronghold
2,031 blocks

Starting island trees: Not verified

  • Trial Chambers36
  • Ruined Portal161
  • Ocean Monument481

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 7908405468585630856 around estimated spawn Explore this seed
#39

7908405468585630856

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-400, -240 (Plains)
Stronghold
1,411 blocks

Starting island trees: Not verified

  • Ruined Portal58
  • Village132
  • Trial Chambers244

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 1368934636679946486 around estimated spawn Explore this seed
#40

1368934636679946486

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-208, 48 (Taiga)
Stronghold
1,692 blocks

Starting island trees: Not verified

  • Ruined Portal165
  • Trial Chambers292
  • Ocean Monument484

Nearby biomes: Cold Ocean · Ocean · Deep Cold Ocean · Beach · Old Growth Birch Forest · Taiga

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 605590111954065548 around estimated spawn Explore this seed
#41

605590111954065548

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-240, 144 (Forest)
Stronghold
1,909 blocks

Starting island trees: Not verified

  • Trial Chambers231
  • Ruined Portal316
  • Ocean Monument387

Nearby biomes: Deep Cold Ocean · Cold Ocean · Forest

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -2649973351087776765 around estimated spawn Explore this seed
#42

-2649973351087776765

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
0, 0 (Taiga)
Stronghold
2,410 blocks

Starting island trees: Not verified

  • Ruined Portal248
  • Trial Chambers250
  • Ocean Monument420

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -6649640606211975630 around estimated spawn Explore this seed
#43

-6649640606211975630

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-40, -168 (Beach)
Stronghold
1,702 blocks

Starting island trees: Not verified

  • Ruined Portal305
  • Trial Chambers355
  • Ocean Monument404

Nearby biomes: Ocean · Lukewarm Ocean · Savanna · Deep Lukewarm Ocean · Beach

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 5942618100799269572 around estimated spawn Explore this seed
#44

5942618100799269572

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
0, 0 (Plains)
Stronghold
2,340 blocks

Starting island trees: Not verified

  • Trial Chambers179
  • Ocean Monument181
  • Ruined Portal487

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed -5263345380153013169 around estimated spawn Explore this seed
#45

-5263345380153013169

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-368, -224 (Plains)
Stronghold
2,013 blocks

Starting island trees: Not verified

  • Trial Chambers72
  • Village144
  • Ruined Portal163
  • Ocean Monument419

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 777818961635251045 around estimated spawn Explore this seed
#46

777818961635251045

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
336, 272 (Snowy Taiga)
Stronghold
1,651 blocks

Starting island trees: Not verified

  • Ruined Portal36
  • Village143
  • Trial Chambers208

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 4416249331473788797 around estimated spawn Explore this seed
#47

4416249331473788797

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
0, 0 (Taiga)
Stronghold
1,533 blocks

Starting island trees: Not verified

  • Trial Chambers342
  • Ruined Portal408
  • Ocean Monument422

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

Open in Seed Map →
Predicted biome map of Java 1.21.4 seed 6379668846175500099 around estimated spawn Explore this seed
#48

6379668846175500099

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
400, 208 (Beach)
Stronghold
1,724 blocks

Starting island trees: Not verified

  • Trial Chambers213
  • Ruined Portal320

Nearby biomes: Ocean · Deep Ocean · Dark Forest

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Predicted biome map of Java 1.21.4 seed -7531273213853931543 around estimated spawn Explore this seed
#49

-7531273213853931543

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-80, -288 (Taiga)
Stronghold
1,311 blocks

Starting island trees: Not verified

  • Ruined Portal285
  • Trial Chambers314

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

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Predicted biome map of Java 1.21.4 seed -8093773972061144385 around estimated spawn Explore this seed
#50

-8093773972061144385

Estimated spawn is on land with at least 80% sampled ocean coverage within 400 blocks. Check the coastline and starting-island trees before choosing this world.

Estimated spawn
-352, 192 (Plains)
Stronghold
1,396 blocks

Starting island trees: Not verified

  • Trial Chambers48
  • Ruined Portal101
  • Ocean Monument152

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

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About these 1.21.4 seeds

Each seed has estimated spawn on land and ocean at at least 80% of sampled points within 400 blocks. This finds ocean-focused starts, but sampling can miss narrow land bridges and does not prove the exact shape of an island.

These lists retain the 1.21.4 generation model for older worlds and modpacks. Use 26.3 lists for Wilderness Bound; new biomes can change the same seed's layout.

Computed for Java 1.21.4. Spawn and terrain-dependent structure placement remain estimates.

For the current Java 26.3 release, see the main island seeds — or the same list for 26.3 · 1.20 · 1.19 · 1.18 · 1.16. All 1.21.4 lists live under best 1.21.4 seeds.

Frequently asked questions

How is this different from the main island seeds page?
These seeds are computed for Java 1.21.4. The main island seeds list targets Java 26.3. Match the version on the card; older versions can generate different biomes and structure positions.
Are these Wilderness Bound seeds?
No. These lists target Java 1.21.4; use the main catalog or the 26.3 lists for Wilderness Bound.