Which Assassin's Creed game introduced the grappling hook for navigating Victorian London?

Assassin's Creed Syndicate introduced the grappling hook for navigating Victorian London.

The grappling hook is one of Syndicate's defining traversal tools. Jacob and Evie Frye use it to reach rooftops, cross gaps, and climb buildings more quickly than earlier protagonists could. It can also create zip lines, helping the twins move through London's dense urban environment and rapidly reach elevated positions.

Syndicate's setting in 1868 made the device a natural fit for a city transformed by factories, railways, and tall structures. The game also introduced drivable carriages and train-based activities, giving movement a distinctly industrial character. The hook should not be confused with the rope launcher in Assassin's Creed Revelations, which served a related traversal purpose but appeared in the earlier Constantinople-set game.