Kingdom Builder Big Box: A game by Donald X. Vaccarino for 2-Ââ€5 players. In Kingdom Builder players found their kingdoms and by adjusting their strategy to the many varying scoring conditions aim to gather the most wealth by the end of game. Contains:-Kingdom Builder base game - Kingdom Builder Expansion "Nomads"-Kingdom Builder Expansion "Crossroads" -Kingdom Builder Mini Expansion "Capitol" - Kingdom Builder Mini Expansion "Caves".