
Modrinth · Minecraft mod
Unnamed Sea
Additional structures for the sea and beach biomes, focusing on an immersive expansion for the vanilla game.
Quick answer
Which Unnamed Sea release should I use?
Unnamed Sea 1.2.5 targets 1.19, 1.19.1, 1.19.2 with Fabric, Forge, NeoForge. Do not install it on the client. It must be installed on the dedicated server. No extra mods listed for this file.
Where it goes
Is Unnamed Sea required on the client, server, or both?
Do not install it on the client. It must be installed on the dedicated server.
This file is marked server-only.
What else does Unnamed Sea 1.2.5 need?
1.2.5. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Unnamed Sea without breaking your instance.
Built for Unnamed Sea 1.2.5. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.2.5. It targets 1.19, 1.19.1, 1.19.2 with Fabric, Forge, NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Do not install it on the client. It must be installed on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.2.5. It opens that exact file at the source.
About this project
What does Unnamed Sea add?

🏖️ About
Looking to spice up your world generation? You’ve come to the right place!
Unnamed Sea expands your world with unique, handcrafted structures that enrich the atmosphere of the ocean and beach biomes. Some are built for adventure and conquest, while others exist purely to enhance the visual experience and deepen your sense of immersion.
For more details, refer to the image gallery, the wiki below, or the following quick summary:
- 4 structure types / 16 total variants
- Island (3 variants)
- Lighthouse (2 variants)
- Raft (9 variants)
- Ship (2 variants)
🌐 Wiki
If you are looking for a wiki of sorts or just a more detailed walkthrough of the content of this mod, then you can find quick and easy introductions to all the added features of this project below.
If you find no answers to your questions here or want to suggest improvements for the project, then feel free to leave a comment on the CurseForge site (here).
Supported Mods
The following mods should be natively supported. However, support for any of these mods may be broken at any time. If this is the case, feel free to comment on the CurseForge site to let me know!
... Work in progress ...
📬 Remarks
Please keep in mind that at any given time vast amounts of the mod may be edited or completely overhauled! These changes should not, but may leave existing worlds on older versions corrupted. Creating backups before updating to a new version is advised!
I want to reiterate that this is simply a passion project. It may occur that for longer periods no updates or bug fixes are being developed/released simply because I do not want to.
Project description from Modrinth.
Pick your setup
Unnamed Sea by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.10
4 loader builds1.21.9
4 loader builds1.21.8
4 loader builds1.21.7
4 loader builds1.21.6
4 loader builds1.21.5
4 loader builds1.21.4
4 loader builds1.21.3
4 loader builds1.21.2
4 loader builds1.21.1
4 loader builds1.21
4 loader buildsShowing the newest 12 of 24 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Unnamed Sea versions and loaders
1.2.5
u_sea-1.2.5+mc1.19-1.21.11.jar
1 Feb 2026
1.2.4
u_sea-1.2.4+mc1.19-1.21.10.jar
19 Oct 2025
1.2.3
u_sea-1.2.3+mc1.19-1.21.8.jar
20 Jul 2025
1.2.2
u_sea-1.2.2+mc1.19-1.21.7.jar
2 Jul 2025
1.2.1
u_sea-1.2.1+mc1.19-1.21.6.jar
24 Jun 2025
1.2.0
u_sea-1.2.0+mc1.19-1.21.5.jar
11 Jun 2025
1.1.0
u_sea-1.1.0+mc1.19-1.21.5.jar
16 May 2025
1.0.0
u_sea-1.0.0+mc1.21.jar
1 Oct 2024
Looking for an older file? The official Modrinth project page is in Resources.