Assassin's Creed III is a historical open world action-adventure game with a focus on stealth. The game follows Desmond Miles, who travels with his father William and companions Rebecca and Shaun to a cave in New York where they have located a temple made by the members of the First Civilization. Using the Apple of Eden, Desmond activates a large part of the equipment, which was built to help protect Earth against a solar flare that threatens to wipe out the planet. Desmond falls into a fugue state and is brought into Animus, the virtual reality machine that allows him to experience his ancestral memories. From this initial modern day environment, the rest of the game is largely set in Colonial America, before, during and after the American Revolution from 1754 to 1783. The main storyline follows Desmond's attempts to retrieve power sources in countries such as Italy and Brazil to open the temple gate. Next to the main storyline, there are various optional missions and tasks that can be found by exploring the environment. The fighting system uses melee and ranged weapons with various actions to disarm, attack, parry, fire and assassinate based on the equipped weapon. Counter attacks are new and shown in slow motion to make room to strike. Ranged weapons such as muskets and rifles are new to the series and they have a considerable reload time.
Next to the gameplay that returns from earlier games, this title introduces hunting and trapping animals in the wilderness to sell the skin. A large part of the game can also be spent building the settlement Davenport Homestead. The player can earn money through the Homestead economy, but also by discovering hidden chests, selling spoils of hunting, looting opponents and pickpocketing.
Additional challenges are unlocked by joining the three clubs: hunting, brawling and thieving. These each offer optional goals in different tiers. Other quests involve hunting down optional trinkets, collecting almanac pages and feathers, delivering letters, performing assassination contracts, synchronizing view points and more.
Multiplayer includes 12 different game modes and is presented as an entertainment product of Abstergo Industries. The cooperative Wolfpack mode allows up to four players to work together through 25 stages to kill NPCs with a time limit.
In the Wii U version, the gamepad is used to display the in-game map and players can also use it to equip different weapons quickly.