Crusader Kings II: Legacy of Rome is an expansion for the popular simulation game that enhances the gameplay experience for players interested in the Byzantine Empire. This full version offers new factions and gameplay mechanics that allow players to either recreate the Roman Empire or navigate the complexities of the great schism. The expansion adds depth and variety, making it a compelling addition for fans of strategy games.

One of the standout features of this expansion is the ability for Byzantine emperors to appoint their successors, which includes the honorary title of 'despot' for preferred heirs. This mechanic adds a layer of strategy to succession planning and enhances the political dynamics within the game. Overall, Legacy of Rome provides a rich and engaging experience for players looking to delve deeper into the historical intricacies of the Byzantine Empire.