



SeaBlock is a survival map created by Tiki. The eternal sea is death to those who sail it. You find yourself atop a small oak tree. Around you, the ocean stretches endlessly. It’s almost morning, and below you, watery groans surface from the deep.
All you have to survive on is a tree and one dirt block. Will you perish at sea? Or will you thrive out on the ocean, and make it your own? This is a challenging survival map, containing endless ocean, terrifying beasts below you at all times, limited resources, boundless freedom, and many, many deaths. These challenges don’t have to be done in order, so feel free to complete these at your own pace.
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Screenshots:

Notes:
- Please do not play on any other version or it may not work!
- You should set Render Distance to 12 or upper.
SeaBlock Map Download Links
- Edition: Minecraft Java
- File type: .zip (world save)
- Minecraft version listed: 1.20.1
- How to install: Download the .zip world. → Unzip it. → Move the folder into .minecraft/saves.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java maps & worlds walks through it step by step.
- Downloads as 85155.mcworld
- Download size: 26.7 MB
- Download link checked 20 Jun 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.