First and foremost: This is NOT a game. This is a GUIDE for the Binding of Isaac: Rebirth (And now Binding of Isaac: Afterbirth)! (Made by Edmund McMillen) I am not him. Nor have I ever directly spoken with him.
This app is a beautiful and interactive, easily searchable, #MATERIYOLO way to learn & advance your way through the game.
It offers in-depth info including (but not limited to) effects, descriptions, how-to's, strategies, etc... on practically everything:
• Monsters, bosses, mini-bosses
• Characters & costumes (see items)
• All Consumables!
• Playing Cards, Tarot Cards, etc
• All items & their respective item pools
• Magic Pills
• Steam achievements
• Isaac Transformations