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Sea CreepsMinecraft mod for 1.21.1

Sea Creeps have swam into Modrinth! The ocean just got explosive...

client and servernewest supported 1.21.1UtilityAdventureMobsDecoration
Latest version
1.2.6
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
MIT
Downloads
16.4k
Updated
9 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Sea Creeps servers

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

  • 1.21.1
  • Forge
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Sea Creeps declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.4Forge, NeoForge17+declared7 Dec 2023
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

From Sea Creeps’s own host. Nothing is re-hosted here.

1.2.6release6 Jan 2026

seacreeps-1.2.9-forge-1.20.1.jar · 2.0 MB · for 1.20.1

Download latest
323bd474a126…
Older versions7
  • 1.2.513 Feb 20251.21.12.5 MB6.6k downloads7521bf47ee68…Get
  • 1.2.410 Feb 20251.20.12.5 MB151 downloads0112001fd14f…Get
  • 1.2.030 Jun 20241.20.12.4 MB4.3k downloads68640a5346fd…Get
  • 1.1.74 Jun 20241.20.12.2 MB303 downloads1b1306b23e00…Get
  • 1.1.22 Jun 20241.20.12.2 MB90 downloads30f84593acd5…Get
  • 1.0.029 May 20241.20.42.2 MB130 downloads97aecfcb4c49…Get
  • 1.1.529 May 20241.20.12.2 MB104 downloads2c4c08e3300e…Get

Frequently asked

Does Sea Creeps work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Sea Creeps 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 Sea Creeps support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Sea Creeps on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Sea Creeps support?

Forge, NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Sea Creeps?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Sea Creeps under?

MIT, 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 Sea Creeps?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod 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 Sea Creeps 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. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

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

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Details from Modrinth, where the author last updated it on 6 Jan 2026. 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? .