Assassin's Creed III is the fifth game of the AC franchise, but the first opus of a new story. We leave behind the tales of the beloved Ezio and Altair to discover Connor, a fascinating hero of the new world. Underscoring this change required the successful union of contrasting priorities: be true to the brand, but create something fresh for a new beginning. Produce a cinematic score, but make it relevant to gameplay. Through practical examples and anecdotes, this presentation will take the audience through all the steps, missteps, intuitive guesses, and passionate work that went into making the music count.