About Unseaworthy
From ModrinthA mod that makes boats unsuitable for ocean voyages.
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_oceanbiome 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.jsonOn 1.21.1 it's
unseaworthy/tags/entity_type/sinkable.jsonYou can change which biomes cause boats to sink with the biome tag
unseaworthy/tags/worldgen/biome/sinks_boats.jsonWhy 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)
Highlights
From source dataGame versions
Supports 3 Minecraft versions, the newest being 1.21.1.
Loaders
Runs on Fabric, Forge and NeoForge.
Footprint
Rated a light load on a server.
Unseaworthy on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Required on the server
- Server type needed
- Fabric, Forge, NeoForge
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 1.4.0-1+1.20.1, released 2025-06-20
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Fabric | 1.20.1 to 1.21.1 (2 versions) | 1.21.1 |
| Forge | 1.20.1 | 1.20.1 |
| NeoForge | 1.21.1 | 1.21.1 |
From 5 recorded builds of Unseaworthy.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 1.4.0-1+1.20.1 | 2025-06-20 | 1.20.1 | Forge |
| 1.4.0+1.21.1 | 2025-06-19 | 1.21.1 | Fabric |
| 1.4.0+1.21.1 | 2025-06-19 | 1.21.1 | NeoForge |
| 1.4.0+1.20.1 | 2025-06-19 | 1.20.1 | Forge |
| 1.4.0+1.20.1 | 2025-06-19 | 1.20.1 | Fabric |
Dependencies
- Required: modrinth project 9s6osm5g (modrinth, not in our catalogue)
Declared by the newest build that lists any. Required ones are installed with it on one-click installs.
Run Unseaworthy on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogVehicles & ships
Cars, boats, aircraft, ships and other things to drive or fly.
Runs on your server
From source side supportModrinth lists Unseaworthy as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- FabricForgeNeoForge
- Runs on
- Serverrequired on the server
- Game versions
- 1.21.1 and 2 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-02Open ↗
- ✓Authormurphy-slaw, as published on Modrinth
- ✓LicenseMITFree
