This is very strange. I was very surprised when an AI privateer sailed past my cities. I thought the AI's don't make privateers, at least I've never seen them make privateers. I've got screenshots: AI privateer. Spoiler : See that galley in the picture? The AI privateer decides to attack that: AI privateer destroyed the galley. Spoiler : Yes, the privateer destroyed my galley. Is it usual for the AI to make privateers? EDIT: The spoilers only show the pictures of a privateer. It's not interesting if you've already seen an AI privateer.