A Game of Thrones: Genesis is a real-time strategy game and acts as a prequel to the novel series A Song of Fire and Ice. During the campaign the player lives through the years -740 to 299.
The player does not build up settlements, but begins with one - territorial gain is achieved by politics. With the help of ambassadors, the player and the AI try to achieve contracts with other cities and rulers. Possible actions include weddings, spying, assassinations or secret contracts - possibly while another house has an official contract with the partner. However, every action influences the peace meter - when it runs out, war begins. The game then becomes a traditional real-time strategy game in which units with different advantages and disadvantages fight against each other.
In the free play mode and multiplayer, prestige is the most important resource, which is earned or lost with special actions. For example, an unmarried house leader (not directly controlled by the player) may choose to have sex nevertheless, which results in bastards. If this becomes known outside of their own house, it costs them prestige. The house reaching a hundred points first wins the match.