SEEDJAVA EDITIONFOUND BY BLOCKARIA1.21.4 → 26.3

Small Plains island alone in the ocean, Trial Chambers 36 blocks away Minecraft seed

A real survival island challenge: little land, lots of water. You spawn in Plains, on an island of about 22,848 blocks² with open ocean all around. Nearby: Trial Chambers (36 blocks), Ocean Ruins (137 blocks), Shipwreck (148 blocks).

Beach biome in Minecraft, illustration — Illustration: the Beach biome in another world (seed 2026).

Spawn point

Spawn biome: Plains
Coordinates: -1008, -192
Height: ≈ 66
Island area: ≈ 22,848 blocks²

Biomes within 96 blocks of spawnshare of the area

Plains47%

Ocean29%

Beach22%

River3%

What’s near spawn

Bar = distance from spawn, longest bar = farthest point. Coordinates are those of the starting chunk (within 16 blocks).

Trial Chambers-976, ~, -208 · Plains 36 blocks

Ocean Ruins-880, ~, -144 · Ocean 137 blocks

Shipwreck-1104, ~, -304 · Ocean 148 blocks

Ruined Portal-1056, ~, 96 · Deep Ocean 292 blocks

Ocean Monument-1296, ~, 96 · Deep Ocean 407 blocks

Stronghold≈ -1564, ~, -1916 · nearest of the first ring, approximate position ≈ 1,811 blocks

Go there · Trial Chambers/spreadplayers →

/spreadplayers -976 -208 0 16 false @s

Puts you on the surface above the structure (cheats on). For underground structures, dig down from there.

Seed map

ChunkbaseSeed map · 5475645522817870840Open on Chunkbase ↗

Centred on spawn. Chunkbase shows one structure type at a time: pick it below. Java Edition only.

Works in these versions

Version	Same world?	Details
Java 1.20	No, different spawn	spawn moved
Java 1.21.1	No, different spawn	spawn moved
Java 1.21.4	Yes	–
Java 26.2	Yes	–
Java 26.3	Structures: yes. Biomes: calculated with the Dappled Forest rule, to confirm in game	–

Computed by our tool for each version. 26.1 and 1.21.5 to 1.21.11 have the same surface generation as 26.2.

Route from spawn

North is negative Z, east is positive X. Press F3 in game to see your coordinates. The coordinates below are those of each structure’s starting chunk, so look around within about 16 blocks.

Trial Chambers (X -976, Z -208): 36 blocks north-east of spawn. The chambers lie underground: dig down from the surface, bring torches and food, and keep your trial keys for the vaults.
Ocean Ruins (X -880, Z -144): 137 blocks east of spawn. Underwater ruins: drowned can spawn around them.
Shipwreck (X -1104, Z -304): 148 blocks north-west of spawn. Search the wreck for its chests and maps.
Ruined Portal (X -1056, Z 96): 292 blocks south of spawn. Check the chest, then complete the obsidian frame to reach the Nether early.
Ocean Monument (X -1296, Z 96): 407 blocks south-west of spawn. Guardians attack on sight: bring potions of Water Breathing.

Stronghold

The nearest stronghold of the first ring is roughly 1,811 blocks north (around X -1564, Z -1916). This position is approximate: throw Eyes of Ender to find the exact spot.

✓ Checked in Java Edition 26.3 · updated 2 November 2026

FAQ

Where is the nearest Trial Chambers in seed 5475645522817870840?

Around X -976, Z -208: 36 blocks north-east of spawn.

Does seed 5475645522817870840 work in 1.21 and 1.20?

From 1.21.4 on, yes. In 1.21.1 and 1.20 the game picks the spawn point differently, so you start somewhere else in the same world.

How do I use the seed 5475645522817870840?

In Java Edition, click “Create New World”, open the “World” tab and paste 5475645522817870840 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.

Why are the heights shown as “~”?

Our tool computes X and Z exactly but not the height of each structure. Use the copyable command: it puts you on the surface above the structure.