As the kingdom grows in power and prosperity, new ambitions lead to new quests, and new heroes become available. Once they've established a goal, players may recruit great heroes to embark upon noble quests that will help the kingdom reach it. Similar to the character ambitions in earlier Sims games, a variety of kingdom ambitions is available from which to choose, with many based in desires for health, wealth, or power.
Instead of focusing on the lives of individual characters, Medieval players guide the development of their own storybook kingdoms, which are driven by ambitions of their choosing. Moving its people-management play from familiar suburban settings to a fairy tale realm of knights and knaves, The Sims Medieval adds aspects of role-playing and city-building games to the series' life-simulation.