The Order of the Silver Twilight is an organization that maintains the facade of a high society club for politicians and businessmen. However, hidden underneath this veil, the true motivations of the Order lie in an obsession with gathering power, learning arcane magics, and gaining dominance over the world.

The Order of the Silver Twilight expansion introduces the Order of the Silver Twilight as the 8th faction into Call of Cthulhu: The Card Game. This expansion contains 55 new cards, 40 of which are from this new faction. There are also two cards for each of the other factions – The Agency, Cthulhu, Hastur, Miskatonic University, Shub-Niggurath, The Syndicate, and Yog-Sothoth – as well as a neutral card. There are three copies of each card in this expansion.

This is not a stand-alone game; a Call of Cthulhu: The Card Game Core Set is required to play.