Proper Family Trees for Old World is a free mod designed for Windows that significantly enhances the family structure within the game. It replaces the default character generation system, which lacks a coherent family dynamic, with a more realistic family tree model. Players will experience an initial setup featuring a married couple and their two children, creating a foundation for deeper familial interactions. This mod also introduces the ability for family members to marry and have children, making the gameplay more engaging and life-like.

In addition to its core features, Proper Family Trees allows players to view the family tree linked to the founder of their nation, adding a layer of strategy and storytelling to the game. The mod includes new founders, ensuring that the initial leader is not always the founder, which diversifies gameplay options. This comprehensive approach to family dynamics enriches the overall experience in Old World.