They were tough times, the days when swords and magic still ruled the world. A long, destructive war had ended, and the entire continent had been unified. Before the empire's subjects had even come to know peace, however, their great emperor fell victim to disease, having never declared a successor...

We must not return to that war-torn world! Thankfully you are an influential figure in the empire. Quickly lay claim to the throne and ensure the rock-solid unity and peace of the continent. Though the emperor had no son, there are seven candidates for succession, starting with the two lineal princesses. Now, let's get your favorite princess on the emperor's throne! Garner support from all over the country, clash with rival candidates and depend on your special skill!

Heart of Crown is a deck-building card game. Each player starts with the same deck, strengthens that deck with strategic cards, and finally one player will declare victory by throning the princess he controls. Each player's deck starts with seven "Rural" territory cards and three "Apprentice Handmaid" succession cards (an unreliable subject). Using the currency (coins) generated by your "Rural" territory cards, you incorporate cards from the market into your deck according to your own strategy.

Each player's main goal is to give the princess he's fielded the throne. First, collect stronger territory cards such as "City" and "Metropolis" to increase your coins, and declare fielding a princess using these coins. There are five princesses and one set of twin princesses, totaling six princess cards. Each princess has special support abilities, but with only one of each, you need to be quick to field the right princess and get the support you need!

For your princess to take the throne, you must collect Succession Points, which represent the support of your loyal subjects and influential figures in the empire. Once you control 20 Succession Points, you may declare a coronation. Your opponents get one more turn to interrupt your coronation, but if your points remain at or above 20 by your next turn, the coronation succeeds and your princess takes the throne!