Build a ship, one compartment at a time.

The Salt & Oath ship lab is a free browser tool for designing a modular cutaway ship. Start from a preset, change the hull layout, equip each room and export the finished view or its editable configuration.

Open the ship lab Explore Salt & Oath

Salt & Oath ship lab showing a four-room cutaway vessel and its ship structure and room controls — A four-room design in the ship lab. Select a compartment to edit its equipment, grade and condition.

The builder

What can you change?

Choose a starting ship

Pick from five presets, then adjust the hull from two to four columns and one to three decks. Add zero, one or two masts and choose a hull paint.

Equip each compartment

Choose a helm, cannon, workshop, sickbay, cargo hold or pump for a room. Set equipment grade and condition, then add details such as windows and lamps.

Inspect the design

Switch between the assembled ship, an exploded view and a parts list. Review the lab's cost, load, crew positions and capabilities while you change the layout.

Save or share your work

Undo and redo changes, download a PNG of the current view, or export and reimport a JSON configuration. The lab also saves the current design in this browser when storage is available.

How it relates to the game

A design sandbox alongside the voyage.

The ship lab uses modular art that also appears in Salt & Oath. Its calculated cost, capacity and combat figures follow separate assembly rules; a lab design does not replace your campaign ship or change its save. In the game, ship growth happens at port between real-time crew battles.

See the crew tactics in the game

Before you start

Ship lab questions

Can I build a ship from scratch?

You can change the hull dimensions and customize every room within the lab's modular parts and rules. It is a structured builder, with two to four columns and one to three decks.

Can I use my design in a Salt & Oath run?

The lab currently keeps its design and display calculations separate from the campaign save. You can export a PNG or JSON file, but there is no import into a run.

Do I need to install anything?

No. The ship lab opens in a desktop or mobile browser. JSON export lets you keep an editable copy outside the browser.

Your next hull starts here.

Open the lab, choose a preset and make each compartment earn its place.

Open the ship lab