Deserted Island: Skyblock Challenge
A patch of green jungle with a few scattered trees, lost in an endless blue ocean.
3923077579758873989 Biomes
Key features
- A tiny sparse jungle island surrounded by ocean, a classic skyblock-style start
- Three Trial Chambers hidden under the ocean floor, within reach of the challenge
- Minimal starting resources that force you to manage every block carefully
Biome and structure map
The map is generated in your browser from the world generation algorithm (cubiomes engine, MIT). Drag to move around and use the mouse wheel to zoom. Hover over a marker to see the structure and its coordinates.
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Spawn (0, 0) -
Trial Chambers -
Ocean Monument -
Desert Pyramid -
Jungle Temple -
Trail Ruins -
Village -
Ancient City -
Pillager Outpost
About this seed
You start on a tiny islet covered in sparse jungle and surrounded by endless ocean. Resources are scarce, but there's just enough to survive and take on one of the toughest challenges in Minecraft. Beneath the waves, Trial Chambers are waiting, and with them the chance to earn a mace.
Coordinates of key locations
Spawn
Trial Chamber I
Trial Chamber II
Trial Chamber III
To see your coordinates, press F3 (Java Edition) or turn on Settings → World → Show Coordinates (Bedrock Edition).
What to do first
- 1 Chop down every tree on the island and keep the saplings for a tree farm
- 2 Build a makeshift food farm before you venture out across the ocean
- 3 Plan a route to the nearest Trial Chambers and secure your way back
Nearby structures
- Ocean Ruins (0, 32), 32 blocks from spawn
- Shipwreck (-128, -176), 217 blocks from spawn
- Trial Chambers (64, 256), 263 blocks from spawn
- Ruined Portal (288, 16), 288 blocks from spawn
- Ocean Monument (-208, -352), 408 blocks from spawn
Tips and tricks
- Don't waste a single block of dirt: you'll need it for bridges over the ocean
- Grow red mushrooms and trees so you never run out of resources
Fun facts
- The community's goal is to defeat the Ender Dragon and get a mace without leaving the island
- Sparse jungle gives less wood than a regular jungle, which raises the difficulty even more
How to use this seed
Java Edition: When you create a new world, click "More World Options" and enter 3923077579758873989 in the "Seed for the world generator" field. Make sure you're playing version 1.21 or newer.
Bedrock Edition: When you create a world, scroll down to the "Seed" field and enter 3923077579758873989. Keep in mind that this seed was tested on Java: on another edition the world will look different.
You can also use the Chunkbase Seed Map to see the full world map before you load it in the game.
