Unseaworthy

Unseaworthy

A mod that makes boats unsuitable for ocean voyages.

by
22.8K Downloads
fabricforgeneoforgegame-mechanicstransportation
Rent Server with this Mod

Screenshots

Choppy seas
Sunk.

About this Mod

Unseaworthy

This mod makes vanilla minecraft boats unseaworthy. They operate normally on rivers and near shorelines, but as soon as they enter an ocean biome, they begin to be tossed by the sea and eventually break apart.

Features

  • Boats deployed on water begin shaking and bouncing upon entering ocean biomes (any biome in the c:is_ocean biome tag).
  • You can optionally set a minimum water depth for boats to sink in tagged biomes.
  • A configurable number of ticks later, the boat is wrecked.
  • The % chance of being wrecked each interval is configurable.
  • Wrecked boats can be configured to:
    • SINK: boat is pulled underwater and ejects passengers
    • BREAK: boat is broken and drops its item entity
    • DESTROY: boat is destroyed and drops a random number of planks and sticks
  • Optionally set a miniumum weather condition to sink boats. Defaults to CLEAR (i.e. always sink boats) but can be set to RAINING or THUNDERING.

Datapack Stuff

You can change which types of boat entities sink with the entity tag

unseaworthy/tags/entity_types/sinkable.json

On 1.21.1 it's

unseaworthy/tags/entity_type/sinkable.json

You can change which biomes cause boats to sink with the biome tag

unseaworthy/tags/worldgen/biome/sinks_boats.json

Why would you want that?

I needed a way to encourage players to build actual ships in a mod pack that is all about ocean voyages. Boats are too
good, so I made them worse.

Acknowledgements

Graphics

Icon: "Bailout" by Luis Prado
from Noun
Project
(CC BY 3.0)

Available Versions

Unseaworthy+1.4.0-1+1.20.1release
MC 1.20.1forge
June 20, 2025
unseaworthy 1.4.0+1.21.1release
MC 1.21.1fabric
June 19, 2025
unseaworthy 1.4.0+1.21.1release
MC 1.21.1neoforge
June 19, 2025
Unseaworthy 1.4.0+1.20.1release
MC 1.20.1forge
June 19, 2025
Unseaworthy 1.4.0+1.20.1release
MC 1.20.1fabric
June 19, 2025

How to Install Unseaworthy on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "Unseaworthy". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricforgeneoforge

Minecraft Versions

1.21.1, 1.21, 1.20.1

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Unseaworthy server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Unseaworthy compatible with fabric and forge and neoforge?

Unseaworthy officially supports fabric, forge, neoforge for Minecraft 1.21.1, 1.21, 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Unseaworthy – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Unseaworthy consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Unseaworthy with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

1.21.11.211.20.1