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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 release 1.21.11WorldgenCursed
Latest version
2.5.0
Minecraft
1.21.2 to 1.21.11
Licence
LGPL-3.0-or-later
Downloads
15.1k
Updated
9 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Ocean Only servers

Deploy a server with Ocean Only already added to the world, 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.

Most recently published release

2.5.0release23 Jan 2026

OceanOnly-v2.5.0.zip · 16 KB · for 1.21.11

Download this release
45086313cc2c…
Older versions2
  • 2.4.019 Nov 20241.21.3, 1.21.228 KB10.4k downloads866fb712a91e…Get
  • 2.3.018 Nov 20241.21.3, 1.21.217 KB326 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.

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?

Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.

Where do I download Ocean Only safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

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

TerralithExplore almost 100 new biomes consisting of both realism and light fantasy, using just Vanilla blocks. Complete with several immersive structures to compliment the overhauled terrain.TectonicTerrain shaping brought to new heights, grander and more varied than ever before!TrekBored of vanilla structure generation? This pack is for you!GeophilicA subtle-ish overhaul of vanilla Overworld biomes! Reworked!Incendium LegacyA nether biome overhaul combined with challenging structures to conquer, unique weapons to obtain, and tricky mobs to defeat.Structory: TowersAdds immersive biome-themed towers to the world, as a standalone option or add-on to Structory

Details from Modrinth, where the author last updated it on 23 Jan 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .