The process of acquiring and managing prisoners is a core part of the "Kingdom" mechanics in the game:
Focus on nodes that spawn enemies matching the Bloodline traits you need. If you are trying to build a team of Sun Elves, farm the nodes occupied by Sun Elf enemies. This ensures that when you do capture a prisoner, they have the correct genetics for your needs.
Here’s a full, detailed post you can use or adapt for a guide, forum post, or social media FAQ on .
Once they are in your dungeon, you must "rehabilitate" them to make them usable. Interacting with prisoners uses , which have a cooldown of roughly 30 minutes per action.
: Focus on building up your City of Light districts to earn gold and resources, which help in maintaining a strong team for deeper dungeon runs.