Navy Toolkit
2021 Nostalgia
Peace
Caribbean
Donate
Overview
Crafting
Trade routes
Ports
Market
Sourcing
Ships
Upgrades
Woods
Cannons
Ranks
Sign-ups
Sign in
with Discord
Overview
Crafting
Trade routes
Ports
Market
Sourcing
Ships
Upgrades
Woods
Cannons
Ranks
Sign-ups
Books
Treatise on Gun Service
Module
Weight 0
Stacks to 100
Treatise on Gun Service
Book
Effects
Gun crew needed
−2%
Fits
All ships
All books →
Try on a ship →