Assassin's Creed III is a historical open world action-adventure game with a focus on stealth. The game follows Desmond Miles as he travels through time using the Animus, a virtual reality machine that allows him to experience his ancestral memories. He will use this ability to find the answers for the First Civilization's warning, and the threat posed by the Knight Templars and their modern day organization Abstergo Industries. The game is set in Colonial America, before, during and after the American Revolution from 1753 to 1783. The main protagonist for this game is Ratonhnhaké:ton (Connor), a member of the Mohawk tribe. He is only introduced after a substantial portion of the game as it first follows Desmond Miles' storyline. The game also introduces hunting and trapping animals in the wilderness to sell their skin, building the settlement Davenport Homestead, and naval campaigns on the Eastern seaboard.
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. There is also a three-tier notoriety system where becoming incognito involves running away and hiding.
Building the settlement Davenport Homestead is another part of the game, allowing the player to build facilities that can be used to craft items, form a local economy, and progress visually with new people working and buildings appearing. The game also contains three historical board games that can be played on the ship, in the cities or the Homestead: Bowls, Morris and Fanorona.
Multiplayer includes 12 different game modes and is presented as an entertainment product of Abstergo Industries. Next to the standard offerings there is the cooperative Wolfpack mode where up to four players work together through 25 stages to kill NPCs with a time limit. Another is the Domination team mode where the Animus game console is used to capture areas of a virtual map and protect them from the opposite team. The game also introduces hunting, brawling and thieving clubs that 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. Each of the three large environments (Boston, Frontier, New York) needs to be freed from Templar influence by liberating districts.