The Binding of Isaac: Four Souls Requiem Review Kickstarter Edition Game Binding Of Isaac: Kickstarter Edition Card Game Four Souls Requiem Expansion So the Binding of Isaac has this card game, and I thought why not make an expansion based on Hollow Knight! This is only what's been made in this project's first 48 Binding of Issac themed card game raises $2 million+ Expansion Pack Target The Binding Of Isaac Four Souls Board Game Binding Of Isaac Cards Binding Of Isaac Four Souls Requiem Warp Zone Stretch Goals Kickstarter Card Game Expansion Gold Box