Assassin's Creed III is a historical open world action-adventure game with a focus on stealth. The game follows Desmond Miles, who uses the Animus machine to relive his ancestral memories. He searches for answers about the First Civilization's warning and the threat posed by the Knight Templars and Abstergo Industries.
The game is set in Colonial America, during the American Revolution from 1753 to 1783. The main protagonist is Ratonhnhaké:ton (Connor), a member of the Mohawk tribe. He is introduced after a substantial portion of the game as it first follows his father, Haytham Kenway, a Templar who travels to America after killing an Assassin in the London Opera.
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 different actions to disarm, attack, parry, fire, and assassinate based on the equipped weapon. Counter attacks are new and shown in slow motion.
The game also features a settlement building system, where the player can build Davenport Homestead and manage its economy. The player can earn money by selling goods, discovering hidden chests, and completing missions. There are also tools to pick locks through a short interactive sequence.
Multiplayer includes 12 different game modes, including cooperative Wolfpack mode and Domination team mode. In the Wii U version, the gamepad is used to display the in-game map and equip weapons quickly.
The game introduces hunting and trapping animals in the wilderness to sell their skins. Progress in the homestead is shown visually with new people working and buildings that appear. Artisans receive upgrades after completing missions for them, providing better equipment and weapons.
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, delivering letters, performing assassination contracts, synchronizing viewpoints, and more.
The game also features naval campaigns on the Eastern seaboard, where Connor has to command the ship through sails, cover, and cannons in full naval combat. Three historical board games are also included, Bowls, Morris, and Fanorona.