Fixed. See "Edit #4" if you need more details. Now workers should be built by AI if you download "Update #4". And one question, how fast/slow is the game near the end? I'm asking becasue I have a pretty fast computer, and never thought of asking other people. Is there a bit lag between turns? If so, then I could just make settlers one more population or twice as expensive with shields or something so the AI doesn't build so many (or at least so fast).