Subclasses are secondary classes that you learn by talking to their dedicated teacher. For now, only one exists: 
Shipwright, specialized in ship repair.
How to get it
Talk to the subclass teacher to learn it. For Shipwright, it's the 
Shipwright Teacher.
How it works
There is currently only one subclass: - Shipwright: specialized in ship repair. It's the only way to repair a ship, outside of going through the 
Frozen Dimension. It's learned from the Shipwright Teacher.
Good to know
- Subclass quests are saved even if you quit the game or die.
Update history
Mechanic : Subclasses·Released : Update 23
Safe Zone
Sea Danger Level
Sea Exploration Group
Server Browser
Settings
Shop
Skins
Slayer Skin
Stats
Striking
Stun
Subclasses
Summer Chest
Summon Sea Beast
Sunken Chest
Swords
Teleportation
Titles
Trading
Transformation
Trees
Trinkets
Uncommon