You can hire new Captains by collecting their fragments. You can obtain them either by researching Captains in the Academy or by using Summoning Scrolls in the Summoning Circle.
Once you have enough fragments to unlock a new Captain, follow the steps below to unlock and hire them.
- Select the icon showing your Hero's avatar to open the Hero and Captain selection menu.
- Select an empty Captain slot.
- Press the Captain selection button.
- Once you've accumulated enough fragments to unlock a new Captain, that Captain will be highlighted in color, while all locked Captains will be shaded in gray. If you have multiple Captains unlocked, then you can swipe left or right in the selection menu to view your options.
- In the "Hire a Captain" section, click Summon to spend the required fragments and hire the selected Captain.
- The hired Captain will be automatically placed in the selected free slot.
You can read more about the Summoning Circle and Captains' star levels.