Treachery Tracker - The Dune Treachery Tracker is designed to help the Atredies player in Avalon Hill's Dune board game keep track of the treachery cards that his opponents hold. Each character in the game is represented by 4 (8 for Harkonen) pop-up buttons that can be set to any of the card types, ???? (for unknown) or blank. In addition the tracker also provides sliders for the Atredies token loss and the turn number (for Bene Geserit predictions).