The game of Kingsburg takes place over five years, a total of 20 turns. In every year, there are 3 production seasons for collecting resources, building structures, and training troops. Every fourth turn is the winter, in which all the players must fight an invading army. Each player must face the invaders, so this is not a cooperative game.
Tzolkin: The Mayan Calendar presents a new game mechanism: dynamic worker placement. Players representing different Mayan tribes place their workers on giant connected gears, and as the gears rotate they take the workers to different action spots.