
Players control Isaac or one of seven other unlockable characters through a procedurally generated dungeon in a roguelike manner, fashioned after those of The Legend of Zelda, defeating monsters in real-time combat while collecting items and power-ups to defeat bosses and eventually Isaac's mother. In the game, Isaac's mother receives a message from God demanding the life of her son as proof of her faith, and Isaac, fearing for his life, flees into the monster-filled basement of their home where he must fight to survive. The game's title and plot are inspired by the Biblical story of the Binding of Isaac. It was released in 2011 for Microsoft Windows, then ported to OS X, and Linux. | Does not work in (Crawl Space) Crawl Spaces.The Binding of Isaac is a roguelike video game designed by independent developers Edmund McMillen and Florian Himsl. This is purely cosmetic, and it will otherwise have no effect. Guppy's Eye: Picking up a second copy of the item gives Isaac a unique costume with both eyes replaced.The contents of Sacks or Chests that haven't spawned yet will still be revealed (for example, in rooms that spawn such Chests or Sacks when Isaac pressed a hidden switch, etc.).This item is substantially less useful in Greed Mode, due to the scarcity of chests.This effect works on all non- ending chests, including Mom's Chest.The only way to get the original drops is to open it with (Flat File) Flat File or Magneto. Mimic Chests will change their contents whenever their spikes pop out.Due to how Trinkets generate, if a Chest displays a trinket, all future Chests will also display/give that trinket until it spawns in some way, at which point all Chests will display a new trinket.If a Red Chest looks like it doesn't have anything in it, it will teleport Isaac to the floor's (Devil Room) Devil Room / (Angel Room) Angel Room.If there are more than four, higher-value pickups like Bombs, Keys, and Soul Hearts will have priority on the display. Chests and Sacks can only display up to four pickups at a time.


Collecting three items from this set will transform Isaac into Guppy. Shows the contents of Chests, Fire Places, Sacks, and Shopkeepers before they're opened/destroyed.
