Play the game and solve the puzzle.
Dinn is an exciting fusion of an expandable dueling card game and an internet-spanning multi-media puzzle.
An Alternate Reality Expandable Card Game
Duel your opponent with customizable decks of cards inspired by myth, history, and science.
Dinn combines intuitive rules with a bluffing mechanic to create a deceptively simple card game that takes only a few minutes to learn but can never be mastered.
Additionally, each of Dinn’s cards hides a puzzle that players can solve to experience an internet-spanning alternate reality game adventure, constructed with professionally produced multi-media content.




Dive Into The Alternate Reality Game
Almost every card in Dinn contains a hidden puzzle on the face of the card. Solving these puzzles will lead you on an immersive alternate reality experience through custom-made multi-media, audio files, websites, and more!
News & updates
Introducing Dinn
Sisyphus Systems has announced the official launch date of Dinn: A Trading Card Game Reimagined. The launch is set for Tuesday, November 10, 2020 at 10:00am MST.