Mistfall heart of the mists is is a fully cooperative card based adventure game set in a world of mystery eldritch powers and perilous adventures heart of the mists continues the story of mistfall in a standalone expansion featuring new heroes enemies encounters and quests and introducing allies as well as alternative versions of some of the base game mechanismsr r at the start of the game each player chooses a hero with a fixed deck of equipment and power cards as well as a set of upg