The Binding of Isaac is a randomly generated action RPG shooter with heavy Rogue-like elements.

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What do you need for Platinum God?

I have 95/97 secrets and a full collection of 198 items. Click to embiggen: All the achievements and secrets I'm now missing are AFAIK (and astats.nl confirms): Spelunker Boy Mama's Boy Platinum ...
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2answers
93 views

Which tarot card gives the bigger damage boost: The Empress, The Devil or Strength?

The Empress - Puts you into curse state for a room The Devil - Acts as a one-time Book of Belial charge Strength - Gives you a temporary +1 HP and boosts your damage. All three of these tarot cards ...
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2answers
5k views

How can I increase my chances of getting cancer?

In a recent Binding of Isaac playthrough I encountered an item which I had not seen before. It was called "Cancer", and it seemed to increase my DPS considerably. However, since then I have only ...
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1answer
459 views

What does the Spider Mod add?

I am thinking about downloading the spider mod for TBOI for the cool tweaks I heard it has, but I can't find information about them. What exactly does the spider mod add?
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2answers
90 views

Killing mom's heart with Judas not counting as an ending?

I killed mom's heart with Isaac and got Judas and ending 1. Then I killed her with Judas and completed the game with credits, but I don't see an additional ending. Is it still counting as one of the ...
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1answer
54 views

Does collecting Dr. Fetus increase odds of finding other bomb-related pick-ups?

In two recent playthroughs, I've picked up Dr. Fetus early on, followed shortly by other bomb-type pickups - Bobby Bomb, Mr. Mega. I seldom see these pickups, so I'm wondering if gaining Dr. Fetus ...
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2answers
117 views

Do Soul Hearts count as tribute hearts?

So I have been playing The Binding of Isaac, and you can have red hearts, and blue hearts (Known as Soul Hearts) and I was wondering, does using the Curse Room Door or doing deals with the devil ...
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1answer
181 views

How do I “make a deal with the devil”?

How exactly do I make a deal with the devil? I'm trying to unlock Eve (the one with the dead bird).
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1answer
119 views

Challenge room locked though I have full health

I thought these opened if you have full health. I actually had full + 2 blue hearts before dropping a bomb on myself before taking the screenshot. But even here I have full health... right?
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1answer
155 views

What is the chance of Skatole to appear at the Shell Game?

In the Arcade room when you play the Shell Game with the beggar there is a chance of him revealing Skatole under one of the Host Skulls when betting. I know when it appears you have a 33% chance of ...
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0answers
80 views

BoI erases my data

I got Binding of Isaac for Linux through the Humble Bundle. It works fine, and sometimes saves my data (things found, challenges unlocked, etc.), but then sometimes erases them - seemingly at ...
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2answers
339 views

What determines how much damage a blue fly does?

I've had trips into the basement where blue flies seemed to do almost cosmetic damage, and trips into the dungeon where the blue flies were a murderous death swarm. What items or statistics make blue ...
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63 views

Does the Lucky Foot affect the Slot machine or not? [duplicate]

So yeah the wiki says that it does increase the chances of winning at the Slot Machine but it also says that it doesn't. I would like a definitive answer to if the Lucky Foot does or does not affect ...
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1answer
953 views

My game tends to crash

I play the Binding of Isaac a lot. I'm trying to unlock the D6, so I must beat the womb as ???. But when I get to the loading screen for the womb part 1, the game always crashes. Is there a way to fix ...
7
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1answer
251 views

How do I know what all this stuff does?

This game has all kinds of items, but everytime I find one there doesn't seem to be a description. How do I know what all this stuff does?
8
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1answer
492 views

Why did I turn into a demon instead of dying?

While playing the Binding of Isaac, I should have died when fighting Monstro II, but instead I got a message on a blue screen saying (I think): "Today is a bad day to have a castle". It gave me half a ...
4
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1answer
494 views

Does buying the Treasure Map cancel the Curse of Darkness Curse?

I'm doing my first challenge run in The Binding of Isaac and I've decided to do the the first challenge on the list: Dark was the Night. This is the challenge where you automatically have the Curse of ...
3
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1answer
645 views

What counts as beating a challenge in Binding of Isaac?

I've been trying to work through the challenges introduced in Wrath of the Lamb to unlock stuff in the Binding of Issac,but have noticed that I'm not winning the challenges after beating 'It Lives'. ...
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2answers
422 views

Is Wrath of the Lamb available to buy anywhere besides Steam?

I see from here that the expansion is available to buy from Steam but there doesn't seem to be any alternative methods of purchase available. Does anyone know if the expansion can be bought anywhere ...
3
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1answer
190 views

What does health actually mean?

The health rating on the character select screen, what is the actual meaning for it? The wiki mentions how one health is equal to one red heart container, but this is not the case. Case in point ...
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2answers
602 views

Can I get to Sheol through a challenge run?

So, I need to beat Sheol with Isaac in The Binding of Isaac, can I select the "Doctors Revenge" challenge (which requires you to beat Mom's Heart) and maybe get lucky with a demon room on the Mom's ...
3
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1answer
218 views

Is the Sacrificial Dagger like the other orbitals?

The wiki description for the Sacrificial Dagger is: Dagger orbits Isaac, very high damage. Does it also have the projectile blocking property of the other orbitals(i.e. Meat Boy or Halo of ...
7
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3answers
633 views

What strategy can I use to beat Isaac?

I'm trying to finally get myself over the Binding of Isaac, and I fear that won't happen until I've beaten the chest level with a few more characters. The problem is that I find it remarkably ...
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1answer
468 views

How do I unlock the “Meat 4 Evar” challenge in “The Binding of Isaac”?

I've had Wrath of the Lamb for a week, and everywhere I search, I can't find the answer. Please help!
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0answers
655 views

Binding Of Isaac sound problem

I recently purchased the Wrath of the Lamb expansion and since then there's no in-game music and no sound... I have just recently formatted my computer and re-installed Windows XP, I don't know if it ...
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3answers
571 views

What counts as damage for the no damage achievements?

In the Binding of Isaac, there are various things that decrease total health in some way. Which of those things count as damage for the "Complete the X without taking damage achievements" (Basement ...
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2answers
605 views

How do secret rooms work in Wrath of the Lamb?

Without the DLC, the secret room would've been here guaranteed, as it's the only non-room area with three or more rooms around it: Instead, I lose. I get nothing. Good day, sir. Why is that? What ...
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2answers
2k views

Is unlocking all the items enough for the Golden God achievement?

Is Golden God unlocked by unlocking every non-DLC item, or do you need to also find and pick them up?
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1answer
367 views

Do I need to open the chest to make it count as a win?

If instead of opening the chest I skipped it and used one of the methods to access Sheol directly (I am error room; Devil room; We need to go deeper) does it still count as a victory as far as the ...
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1answer
526 views

Are the chest level unlockables required for Platinum God?

In the most recent update after beating the most recent boss holding the Polaroid. You can unlock a special chest level which beaten by each character unlocks a new trinket. Are these items required ...
5
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1answer
794 views

Can I go back to the rest of the level once I beat Mom?

Am I really leaving behind everything on the Depths 2 after I enter the boss room? I had left behind a blood donation machine and a full health pill and everything else!
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1answer
441 views

Why did my pills change?

In Binding of Issac Wraith of the Lamb I picked up a Range Down Pill that I already identified. Some time during the play-through it changed to a Range Up Upgrade. I am not sure when it happened or ...
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2answers
1k views

Dependency is not satisfiable: libgdk-pixbuf2.0-0 error when installing Binding of Isaac

I'm trying to install Binding of Isaac on my Debian machine, when I try to install the .deb installation package with GDebi, I get the error Error: Dependency is not satisfiable: ...
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1answer
925 views

Do challenge runs count towards Isaac's completion achievements?

Challenges 9 and 10, Isaac was good today and The purist, require you to kill respectively Satan and Isaac. Do these kills count towards Isaac's achievements, Mom's Knife and The D20?
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1answer
2k views

If I use the Ankh and manage to kill the final boss, who gets credit for the kill?

The Ankh item works this way: when you are killed it instantly teleports you to the previous room visited, turning you into ???. If, while in this state, you manage to kill Satan/Isaac, who gets the ...
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2answers
2k views

What are all of the rules that determine where secret rooms appear?

The Binding of Isaac with the Wrath of the Lamb expansion has two different secret rooms on each floor. It seems that there are some specific rules that determine where the rooms can appear on the ...
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3answers
4k views

How can I find the secret rooms most efficiently?

With the Wrath of the Lamb expansion, The Binding of Isaac now has two different kinds of secret rooms, and together they seem to have somewhat complex placement rules. If I can only search for these ...
3
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2answers
1k views

Are the no-damage achievements necessary to get “Golden God” and “Platinum God”?

In the base game there are five achievements that require you to complete a "layer" of the basement without taking damage. Are these necessary to get the "Golden God" and the "Platinum God" ...
5
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1answer
887 views

My “damage” stat bar is flashing. What does it mean?

When I open the menu to look at my stats, the bar that shows damage is "flashing" (well, it looks more like it keeps increasing from "0" to "max" over and over again at high speed, hence "flashing"). ...
5
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1answer
994 views

What happens if I get an Eternal Heart when I already have 12 Heart Containers?

We already know that Soul Hearts can stack indefinitely, even with 12 Heart containers. What happens with Eternal Hearts in the same situation? Are they still getting added between Heart containers ...
3
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1answer
8k views

How does the Scapular work?

The description of the Scapular on the wiki says: Whenever you are downed to 1/2 of your last Heart, Aura around your head temporarily vanishes and you are granted 1 Soul Heart. Does this ...
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1answer
1k views

Is the Golden God Achievement still possible with wrath of the Lamb?

Can I still get the Golden God! achievement in Wrath of the Lamb or will I only get it when I get the Platinum God! too? The description of both achievements is: "100% of the game" but Golden God! ...
4
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1answer
245 views

What's causing my random magnet effect?

Sometimes, I get random magnetic effects like you typically see with Magneto. What could be causing me to have these magnetic properties?
4
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1answer
10k views

How do I unlock the Cathedral in the Wrath of the Lamb DLC?

I bought the Wrath of the Lamb DLC, but the Cathedral isn't unlocked yet. How is this unlocked? Is it because I haven't beaten the Sheol with all the characters yet?
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1answer
1k views

Can “Blood Lust” take me above max damage?

Samson's starting item, Blood Lust, increases the the damage of Isaac's tears with each kill. Can it go beyond scale, as some damage multipliers do (i.e. Whore of Babylon)? What I'd like to know is ...
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1answer
474 views

Are Sheol achievements locked now with Wrath of the Lamb?

I had most achievements before the Wrath of the Lamb update. Most of them, that is, except for the ones given for completing Sheol with Judas and Eve. I then completed the full game with Judas and got ...
4
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1answer
1k views

How does the new type of secret room work?

In Wrath of the Lamb, I've come across a new type of secret room that works in ways I am not familiar with (primarily, unlike the standard secret room, it doesn't appear next to multiple adjacent ...
3
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1answer
2k views

Can I unlock samson by ignoring two treasure rooms on the same floor?

Unlocking the new Samson character requires one to "pass on 2 treasure rooms". I've recently started the game only to encounter an extra large version of the basement (the level I was on said ...
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2answers
384 views

How does the game prioritize hearts?

If I have white hearts, soul hearts, and normal hearts, in what order will they be taken when I am damaged?
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1answer
32k views

Which Trinkets are available in Wrath of the Lamb?

I just found a new item called Tick in Wrath of the Lamp DLC and discovered that is a 'Trinket'. In the meanwhile while playing I found other trinkets like Aces of Spades, Push Pin, 2 of Diamonds and ...