Open Secrets is a deck based on the theme "hidden in plain sight, but difficult to see". Even the title has a double meaning. It is an invitation to reveal its secrets, or it states the obvious that the secrets are already out in the open.

The Cloisters set of fifty-two cards constitutes the only known complete deck of illuminated ordinary playing cards (as opposed to tarot cards) from the fifteenth century. There are four suits, each consisting of a king, queen, knave, and ten pip cards. The suit symbols, based on equipment associated with the hunt, are hunting horns, dog collars, hound tethers, and game nooses. The value of the pip cards is indicated by appropriate repetitions of the suit symbol. The figures, which appear to be based on Franco-Flemish models, were drawn in a bold, free, and engaging, if somewhat unrefined, hand. Their exaggerated and sometimes anachronistic costumes suggest a lampoon of extravagant Burgundian court fashions. Although some period card games are named, it is not known how they were played. Almost all card games did, however, involve some form of gambling. The condition of the set indicates that the cards were hardly used, if at all. It is possible that they were conceived as a collector’s curiosity rather than a deck for play.

The Met has partnered with Lingo on these one-of-a-kind playing cards inspired by the Museum's holdings. Arms and armor have appeared in virtually every culture through the millennia, though their styles, materials, and applications are vast. Comprising some 14,000 objects, this specialized collection is one of the most comprehensive of its kind. From a magnificent Japanese mask (1745) bearing the ferocious face of Jikokuten, one of the Four Kings of Heaven, to an exquisitely decorated British suit of gold and steel (1527) probably forged for King Henry VIII, this deck presents highlights and hidden gems of the Museum's renowned Department of Arms and Armor. 56 cards per deck. Collaboration between The Metropolitan Museum of Art and Lingo Playing Cards. The naming convention used by The Met appears to be in the style of "The Met x [collaborator]". Not explicitly stated but probably Classic Air Cushioned Finish.

The second of the series, Divergent Realms Playing Cards' Faraday Deck will feature hand-crafted detailed artwork, metallic inks and foil embossed tuck-boxes.

The Faraday Deck (Spiritual Mysticism) - a fascinating deck dedicated to and designed around the forgotten art of the mysterious iconic Ouija board game. The deck is named after Michael Faraday was an English scientist who contributed to the study of electromagnetism and electro-chemistry. Faraday concluded the action of the board can be parsimoniously explained by unconscious movements of those controlling the pointer, a psycho-physiological phenomenon discovered by Faraday and became known as the ideomotor effect.

Kickstarter campaign

The third of the series, Divergent Realms Playing Cards' Gaddis Deck features hand-crafted detailed artwork, metallic inks and foil embossed tuck-boxes.

The Gaddis Deck (Bermuda Triangle) - named after Vincent Hayes Gaddis, an American author who invented the phrase "Bermuda Triangle", which he used first in the cover article for the 1964 February issue of the magazine Argosy. He popularized many stories about anomalous and paranormal phenomena.

Kickstarter

The original deck (https://www.portfolio52.com/deck/16175/view) was numbered for KS project and all the leftovers from the production were distributed without any seal.