AnvilNext also helped them accurately represent naval battles (which are new to the series) in the Chesapeake Bay and dynamic weather conditions, both of which played critical roles in history and could not have been done with their previous game engine.

CNN: American history unfolds in 'Assassin's Creed 3'

Watch the Kickstarter pitch (below) for a detailed explanation of combat and other systems in the game, including its dynamic weather and time system which not only has day and night cycles, but entire calendar year cycles and a fully diagrammed sky full of celestial bodies that change over the course of time.

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