Amazon.com: Maestro Media The Binding of Isaac: Four Souls: Requiem Expansion 250+ New Cards, Characters, Monsters, Room Deck & Game Modes for Kids & Adults, Ages 13+, 1 4 Players, 60 Min Playtime : Video Games 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 Maestro Media The Binding of Isaac: Four Souls and 2nd Edition Card Game Expansion : Amazon.com.au: Toys & Games Binding of Isaac Four Souls Full Collection Kickstarter Board Game by Maestro Media The Game Steward The Binding of Isaac card game is over half off ahead of Prime Day Kickstarter Edition Game Binding Of Isaac: Kickstarter Edition Card Game Four Souls Requiem Expansion