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data pack

Ocean OnlyMinecraft data pack for 1.21.11

Only oceans will be generated in the overworld.

server onlynewest supported 1.21.11WorldgenCursed
Latest version
2.5.0
Minecraft
1.21.2 to 1.21.11
Java
Java 21+
Loader
Data pack
Licence
LGPL-3.0-or-later
Downloads
15.1k
Updated
6 mo ago
Available on
Modrinth
Space NodePartner

Host Ocean Only servers

One click and Ocean Only is installed with the right loader, on hardware built for it.

  • 1.21.11
  • Data pack
  • One click install
  • Version matched
  • Automatic backups
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Ocean Only declares support for, newest first, with the Java runtime that version needs.

Other data packs
MinecraftThroughJavaEvidenceReleased
1.21.11Data pack21+declared9 Dec 2025
1.21.3Data pack21+declared23 Oct 2024
1.21.2Data pack21+declared22 Oct 2024

Download

From Ocean Only’s own host. Nothing is re-hosted here.

2.5.0release23 Jan 2026

OceanOnly-v2.5.0.zip · 0.0 MB · for 1.21.11

Download latest
45086313cc2c…
Older versions2
  • 2.4.019 Nov 20241.21.2, 1.21.30.0 MB10.4k downloads866fb712a91e…Get
  • 2.3.018 Nov 20241.21.2, 1.21.30.0 MB326 downloads0040e520396e…Get

Frequently asked

Does Ocean Only work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Ocean Only declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Ocean Only support?

Everything the author has declared, from 1.21.2 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Ocean Only on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which loader does Ocean Only need?

Data pack. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Ocean Only?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the data pack itself.

What licence is Ocean Only under?

LGPL-3.0-or-later, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Ocean Only?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the data pack and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Ocean Only safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .