Which Assassin's Creed game introduced the Frye twins, Jacob and Evie, in Victorian London?

Assassin's Creed Syndicate introduced the Frye twins, Jacob and Evie, in Victorian London.

The game is set in London during the Industrial Revolution, primarily in the 1860s. Jacob and Evie Frye are playable Assassins who challenge Templar control of the city while building a street gang called the Rooks.

Jacob generally focuses on direct combat and gang expansion, while Evie emphasizes stealth and the search for Pieces of Eden. The campaign allows players to switch between them for most story activities, although some missions specify one twin.

Syndicate followed Unity, whose protagonist is Arno Dorian in revolutionary Paris. It also differs from Rogue, which follows Shay Cormac, an Assassin who turns against the Brotherhood. The Frye twins are therefore specifically associated with Syndicate, not a shared cast across the whole series.