The Binding Of Isaac

Strategy Guide/Walkthrough/FAQ

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  • Play as ???

    Defeat It Lives by completing the game ten times to unlock ???.

  • Play as Cain

    Have all 55 pennies at the same time in one playthrough to unlock Cain.

  • Play as Eve

    Make two deals with the Devil in one playthrough.

  • Play as Judas

    Successfully complete the game two times to unlock Judas.

  • Play as Magdalene

    Have seven heart containers in one playthrough to unlock Magdalene.

  • Play as Samson ("Wrath Of The Lamb" DLC)

    In the "Wrath Of The Lamb" downloadable content, defeat Mom and skip two treasure chest rooms to unlock Samson.

  • Steam achievements

    Successfully complete the indicated task to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", "My profile", "View all my games", then the game and view stats.

      ???: Complete the full game 10 times.
      Basement Boy: Complete the basement without taking damage.
      Cain's Eyepatch: Collect 50+ pennies in one play through.
      Dark Boy: Complete the depths without taking damage.
      Everything's Terrible!: Complete the full game 6 times.
      Golden God!: 100% the game.
      I have sticker fingers...: You defeated Gish!
      I Killed Mom!: Kill mom...
      I need a hug...: You defeated C.H.A.D.!
      It Lives!: Complete the full game 9 times.
      Judas's Fez: Complete the full game.
      Lil Chubby: Defeat all bosses in the caves.
      Lokis Horns: Defeat all bosses in the depths.
      Maggys Wig: Collect 7+ container hearts in one play through.
      Mamas Boy: Complete the full game without taking damage.
      Moms Contact: Stay out of moms things!
      Moms Pill Bottle: Mom needs her pills! donate blood.
      Money = Power: Complete the full game 8 times.
      Monstros Tooth: Defeat all bosses in the basement.
      Mr. Mega!: Kids shouldn't play with matches...
      My head hurts...: You defeated Steven!
      Spelunker Boy: Complete the caves without taking damage.
      The Bag: Complete the full game with Cain.
      The Bandage: Make a Super Meat Boy!
      The Bean: You don't wanna know where this bean has been...
      The Book of Sin: Destroy the 7 Sins!
      The Common Cold: Dirty needles... eww.
      The Cross: Complete the full game with Maggy.
      The D6: Complete the full game with ???.
      The Fetus: Complete the full game 5 times.
      The Gamekid: I lost mine in the arcade...
      The Halo: Give mom a taste of her own medicine!
      The Nail: Complete the full game 3 times.
      The Necronomicon: Call death upon all of them!
      The Noose: Complete the full game 2 times.
      The Parasite: Kids shouldn't play with dead things...
      The Quarter: Complete the full game 4 times.
      The Radioactive Spider: Complete the basement.
      The Robo-Baby: Complete the full game with Judas.
      The Rock: I like to break things...
      The Shears: I've lost my head one too many times...
      The Spelunker: Complete the Caves.
      The Wafer: Complete the full game 7 times.

    The following achievements require the "Wrath Of The Lamb" bonus downloadable content:

      Abel: Complete the final chapter with Cain.
      Blood Rights: Kill Satan with Samson.
      Bloody Lust: Kill mom's heart with Samson.
      Dad's Key: Unknown.
      Daddy's Love: Unknown.
      Guppy's Hairball: Unknown.
      Guppys Tail: Complete Challenge 4.
      Mega Fetus: Complete Challenge 6.
      Platinum God!: 100% the game.
      Samson: Kill mom but pass 2 treasure room items.
      Super SMB Fan: Complete Challenge 7.
      The Bloody Penny: Complete the final chapter with Samson.
      The Burnt Penny: Complete Challenge 3.
      The Candle: Complete Challenge 1.
      The Counterfeit Coin: Complete Challenge 9.
      The Cross: Complete the final chapter with Maggie.
      The Curved Horn: Complete the final chapter with Judas.
      The D20: Complete the final chapter with Isaac.
      The Fish Head: Complete Challenge 5.
      The Lucky Toe: Complete Challenge 2.
      The Polaroid: Unknown.
      The Rainbow Baby: Complete the final chapter with Unknown.
      The Sacrificial Knife: Complete the final chapter with Eve.
      The Spider Butt: Complete Challenge 8.

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