Doppleganger is an adventuring-party card game, with a traitor mechanic. One or more of the players are dopplegangers trying to stop the party from finding three Artifacts of Light.

Doppleganger has a whiff of Resistance, Battlestar Galactica, and Dark Moon, as players are asked to come along on an adventure, secretly throw cards into the mix, and choose which dice to use in the impending battles. Will they throw in an important weapon or a horrendous poison potion? Will they put in beneficial or detrimental dice? Add Doppleganger to your collection to find out!