Survival island · Spawn: Taiga Small Taiga island alone in the ocean
Trial Chambers352 blocks
Ruined Portal352 blocks
Ocean Monument429 blocks
Best Survival Island Seeds for Minecraft Java Edition
8 seeds chosen for a survival island start, each with its spawn, the structures around it and the versions where it works.
Survival island · Spawn: Forest Small Forest island alone in the ocean, Ocean Monument 299 blocks away
- Ocean Monument299 blocks
- Trial Chambers330 blocks
- Ruined Portal404 blocks
Survival island · Spawn: Ice Spikes Small Ice Spikes island alone in the ocean
- Ocean Monument151 blocks
- Trial Chambers198 blocks
- Ruined Portal290 blocks
Survival island · Spawn: Plains Small Plains island alone in the ocean
- Trial Chambers97 blocks
- Ruined Portal225 blocks
- Ocean Monument425 blocks
Survival island · Spawn: Forest Small Forest island alone in the ocean
- Trial Chambers80 blocks
- Ruined Portal187 blocks
- Ocean Monument424 blocks
Survival island · Spawn: Forest Small Forest island alone in the ocean, Ocean Monument 279 blocks away
- Ocean Monument279 blocks
- Ruined Portal375 blocks
- Trial Chambers379 blocks
Survival island · Spawn: Plains Small Plains island alone in the ocean, Trial Chambers 36 blocks away
- Trial Chambers36 blocks
- Ruined Portal292 blocks
- Ocean Monument407 blocks
Survival island · Spawn: Plains Small Plains island alone in the ocean, Ruined Portal 173 blocks away
- Ruined Portal173 blocks
- Trial Chambers182 blocks
- Ocean Monument351 blocks
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All seeds at a glance
| Seed | Best for | Spawn biome | Key structure | Distance |
|---|---|---|---|---|
| 8558146574478269063 | Survival island | Taiga |  Shipwreck | 160 blocks |
| 2480844646016609498 | Survival island | Forest | Shipwreck | 160 blocks |
| 8545834497553533102 | Survival island | Ice Spikes |  Ocean Ruins | 102 blocks |
| 4899934842273040702 | Survival island | Plains | Trial Chambers | 97 blocks |
| 3404544535694295634 | Survival island | Forest | Trial Chambers | 80 blocks |
| 1227097359770298703 | Survival island | Forest | Ocean Ruins | 80 blocks |
| 5475645522817870840 | Survival island | Plains | Trial Chambers | 36 blocks |
| 6690731278354434354 | Survival island | Plains | Ocean Ruins | 116 blocks |
How we measure an island
Our tool maps land and water around spawn and keeps seeds where the spawn sits on a small piece of land, surrounded by ocean on all sides, with almost no other land nearby. Wood is limited: plant every sapling.
✓ Checked in Java Edition 26.3 · updated 2 November 2026
FAQ
How do I use the seed 8558146574478269063?
In Java Edition, click “Create New World”, open the “World” tab and paste 8558146574478269063 in the “Seed for the world generator” field. The coordinates on this page are only valid in Java Edition.
Does this seed work in Bedrock Edition?
No. Bedrock Edition places structures differently, so the same number gives another world. All seeds on Blockaria are Java seeds.
Method and credits
All seeds on Blockaria were found by our own search tool, not copied from other lists. Biomes and structures are computed with cubiomes by Cubitect (MIT licence), a version we froze for 26.1 and 26.2, plus the 26.3 Dappled Forest rule. Coordinates are the starting chunk of each structure (within 16 blocks); heights are confirmed in game. Map: Chunkbase.
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