Machines

Machines are objects that Isaac can interact with to gain a variety of rewards.

Slot Machine[]

Walking up to the Slot Machine and bumping into it will consume one penny and spin the slots. The Machine then has a chance to spawn one of its possible rewards. Slot Machines appear naturally in Arcades, Secret Rooms, and other room layouts, and can be summoned using the X - Wheel of Fortune tarot card.

If the Slot Machine is caught in an explosion of any kind, it will be destroyed, yielding various rewards (see below). The Slot Machine also has a 2% chance to self-destruct after inserting a penny, in which case it drops several random pickups or A Dollar and becomes unusable.

The D4 is unlocked when 30 Slot Machines are destroyed (via explosion or overloading) by Isaac.

When blown up in the Dark Room or Chest, it will drop a collectible from the Treasure Room item pool, much like normal and golden Chests.

Lucky Foot raises the odds by a multiplier of 1.4x. On hard mode, the chances of winning at the Slot Machine are halved.

Possible Results from Coin Gamble (in Percentage % Points)
	Explosion	Nothing	Bomb	Key	Heart	Pill	One Coin	Two Coins	A Dollar	Black Fly	Pretty Fly
No Lucky Foot, Normal	2	54.0	4.7	3.1	9.3	4.7	11.4	5.7	0.47	3.1	1.56
Lucky Foot, Normal	2	37.4	6.5	4.4	13.1	6.5	16.0	8.0	0.65	4.4	2.18
No Lucky Foot, Hard	2	76.0	2.3	1.6	4.7	2.3	5.7	2.9	0.23	1.6	0.78
Lucky Foot, Hard	2	67.2	3.3	2.2	6.5	3.3	8.0	4.0	0.33	2.2	1.09

Possible Rewards when Destroyed[]

When Isaac destroys a Slot Machine, there is a:

10% chance to drop a random pill
10% chance to drop a random trinket
1% chance to drop a Chest
1% chance to drop a Locked Chest
78% chance to drop 2-3 random pickup groupings; for each grouping, there is a
- 35% chance to drop 1-3 random coins
- 20% chance to drop a random heart
  - If Daemon's Tail is held, there is an 80% chance to prevent this grouping from being chosen; if prevented, another pickup grouping will be chosen instead.
  - If chosen, there is a 50% chance that this counts as 2 pickup groupings.
- 15% chance to drop a random key
- 30% chance to drop a random bomb

There is a 33% chance of an extra pickup grouping spawning if Isaac is holding Lucky Toe.

Furthermore, if the 78% chance to drop the pickup groupings is selected, there is a 33% chance for the following conditions to occur:

If Ace of Spades is held, spawn an extra random card.
If Safety Cap is held, spawn an extra random pill.
If Match Stick is held, spawn an extra random bomb.
If Child's Heart is held, spawn an extra random heart.
If Rusted Key is held, spawn an extra random key.

Note that only 1 additional item can spawn from this 33% chance. In the case of having multiple matching trinkets, the conditions are checked in order.

For debugging purposes, an init seed that spawns a slot machine that pays out a Dollar on the first attempt is 1236239571.

Fortune Telling Machine[]

The Fortune Telling Machine is similar to the Slot Machine. Bumping into the Machine costs one penny, which will either display a random fortune or special seed on-screen, or cause the Machine to spawn one of its possible drops. Fortune Telling Machines appear naturally in Arcades, Secret Rooms, Super Secret Rooms, and other room layouts, and can be summoned using the X - Wheel of Fortune tarot card. The Fortune Telling Machine also has a chance to self-destruct after inserting a penny, in which case it drops several random pickups or Crystal Ball. Like the Slot Machine, Fortune Telling Machines will also drop a random collectible item when destroyed in the Dark Room or Chest.

Possible Results from Coin Gamble (in Percentage % Points)
	Explosion	Fortune	Trinket	Soul Heart	Card or rune	Crystal Ball
Without Lucky Foot, Normal	1.75	65	14.29	7.14	10.71	1.11
With Lucky Foot, Normal	3.5	29.9	28.6	14.3	21.46	2.22
Without Lucky Foot, Hard	0.75	85	6.1	3.06	4.59	0.47
With Lucky Foot, Hard	3.045	39.1	24.9	12.42	18.64	1.93

Notes[]

The Lucky Foot item increases the pay out chance from 35% to 54%.
When Fortune Telling Machines are blown up, they have the same drop table as Slot Machines (see above).

Fortunes
LOOK TO LA LUNA DON'T LEAVE THE / HOUSE TODAY WE WILL ALL / DIE ONE DAY YOU ARE THROWING / YOUR LIFE AWAY GO OUTSIDE! GIVE UP! YOU WILL DIE ALONE ASK AGAIN LATER WAKE UP YOU ARE WORSHIPING / A SUN GOD STAY ASLEEP MARRY AND REPRODUCE QUESTION AUTHORITY THINK FOR YOURSELF STEVEN LIVES BRING HIM THE PHOTO YOUR SOUL / IS HIDDEN DEEP / WITHIN THE DARKNESS YOU WERE BORN WRONG YOU ARE DARK INSIDE YOU WILL NEVER / BE FORGIVEN WHEN LIFE / GIVES YOU LEMONS / REROLL! IT IS DANGEROUS / TO GO ALONE GO TO THE NEXT ROOM YOU WILL DIE WHY SO BLUE? YOUR PRINCESS / IS IN ANOTHER CASTLE YOU MAKE MISTAKES / IT IS ONLY / NATURAL A HANGED MAN / BRINGS YOU / NO LUCK TODAY THE DEVIL IN DISGUISE NOBODY KNOWS / THE TROUBLES / YOU HAVE SEEN DO NOT LOOK SO HURT / OTHERS / HAVE PROBLEMS TOO ALWAYS YOUR HEAD / IN THE CLOUDS DO NOT LOSE YOUR HEAD DO NOT CRY / OVER SPILLED TEARS WELL THAT / WAS WORTHLESS SUNRAYS ON YOUR / LITTLE FACE HAVE YOU SEEN THE EXIT? ALWAYS LOOK ON / THE BRIGHT SIDE GET A BABY PET / IT WILL CHEER YOU UP MEET STRANGERS / WITHOUT PREJUDICE ONLY A SINNER SEE WHAT HE SEES / DO WHAT HE DOES LIES LUCKY NUMBERS / 16 31 64 70 74 GO DIRECTLY TO JAIL REBIRTH GOT CANCELLED FOLLOW THE CAT YOU LOOK FAT / YOU SHOULD / EXERCISE MORE TAKE YOUR MEDICINE COME TO A FORK / IN THE ROAD / TAKE IT BELIEVE IN YOURSELF TRUST NO ONE TRUST GOOD PEOPLE FOLLOW THE DOG FOLLOW THE ZEBRA WHAT DO YOU WANT / TO DO TODAY USE BOMBS WISELY LIVE TO DIE YOU ARE / PLAYING IT WRONG / GIVE ME THE CONTROLLER CHOOSE YOUR OWN PATH YOUR OLD LIFE / LIES IN RUIN I FEEL ASLEEP!!! MAY YOUR TROUBLES / BE MANY BLAME NOBODY / BUT YOURSELF

Blood Donation Machine[]

Bumping into the Blood Donation Machine will damage Isaac. The machine will then pay out with 1-2 of any type of coin (only 1 in Hard Mode) or, rarely, Child's Heart. Every donation has a chance of causing the Blood Donation Machine to explode, giving either a Blood Bag or an IV Bag. Alternatively, it can be destroyed with a bomb, which will cause it to drop several coin or heart pickups.

Notes[]

On the floors before Womb, the machine will take a half-heart of health from each use. From The Womb and onward, the Blood Donation Machine will take one full heart instead.
It is possible to be killed by the Blood Donation Machine.
Once a Blood Donation Machine has given IV Bag, future Blood Donation Machines will never pay out with it again for the rest of the run unless Blood Bag has not been unlocked yet.
It is possible for any number of Blood Bags to appear in the same run.
Holy Mantle does not prevent damage from a Blood Donation Machine.
Invulnerability and shields can be used to prevent damage from it.
The Machine will accept Eternal Hearts first, then red hearts. When Isaac's health is at half a heart (or a full heart in Womb and beyond), the machine will drain Soul Hearts and Black Hearts instead.
While the Machine takes red hearts before Soul Hearts or Black Hearts, using a Blood Donation Machine will trigger Scapular once Isaac is at half a heart. Leaving the room afterward and then reentering resets Scapular, allowing for further donations using Soul Hearts. Repeating this process after every Scapular activation allows Isaac to collect coins from the Blood Donation Machine until it breaks.
With Isaac's Heart, the Machine can be used without taking any damage.
Invincibility frames can be used to activate a blood donation machine for free.
Blood Donation Machines will drain Isaac's last half red heart before draining Soul Hearts.
Blood Donation Machines will ignore Eternal Hearts while Isaac has any other hearts.
Blood Donation Machines may fail to pay out when used as Keeper or Tainted Keeper, preventing abuse.
If Isaac has Red and Rotten Hearts, the Machine will take Red Hearts before taking Rotten Hearts.

Restock Machine[]

The Restock Machine is an object added in The Binding of Isaac: Afterbirth appearing commonly in Shops in Greed Mode, and rarely in Arcades, Black Markets, Crawl Spaces, I AM ERROR rooms, Secret Rooms, and Treasure Rooms outside of Greed Mode. Restock Machines also have a chance to spawn in Shops outside of Greed Mode, replacing the Donation Machine.

In Shops and Black Markets, each activation will cause the following effects:

Rerolls every item and pickup for sale.
Refills all empty Shop slots.
Item pedestals in the room that are not for sale will not be rerolled.

The chance for the Shop to be restocked increases as more coins are inserted.

In all other rooms, the Restock Machine will reroll any items present after donating enough pennies or blowing it up. It will not generate new items to replace the taken ones. It will reroll all items in the room even if they were not originally present (e.g. items from beggars).

Restock Machines can break after the fourth guaranteed reroll with a 50% chance for every subsequent reroll that should've been successful. This will cause them to drop a small number of coins.

Bombing a Restock Machine breaks it immediately. When a Restock Machine explodes, either through bombing or extended use, it will always reroll every item in the room, then reroll them again a half second later. Saving and quitting in the middle of the first reroll will prevent the second reroll upon re-entering the game, allowing Isaac to take a desirable item.

Restocking the shop in the Mirrored world will make items appear in the mirrored shop. The normal shop will not be rerolled, and subsequent rerolls will not match those of the mirrored shop.

Mom's Dressing Table[]

Mom's Dressing Table is an object added in Booster Pack #2 of The Binding of Isaac: Afterbirth †. If Isaac has more than 8 items, it has a 50% chance of appearing in the starting room of a floor. Mom's Dressing Tables have a high chance to spawn in Clean Bedrooms and Dirty Bedrooms.

If Isaac bumps into Mom's Dressing Table, his appearance will be randomly changed such that only a few of his items are displayed.

Hitting Mom's Dressing Table with an explosive will cause it to break and drop 1-4 pills. There is a 1% chance to spawn one of the following items instead: Mom's Underwear, Mom's Heels, Mom's Lipstick, Mom's Bra, Mom's Pad, Mom's Eyeshadow, Mom's Contacts, Mom's Wig, Mom's Perfume or Mom's Pearls. Items that have already been generated and/or collected can be spawned again in this manner.

Mom's Dressing Table is based on this Steam Workshop mod by Sinsthar.

Crane Game []

The Crane Game is an object added in The Binding of Isaac: Repentance. After unlocking it, the Crane Game can appear in Arcades and rarely in normal rooms. It can also appear in the Greed Mode Shop, replacing the Restock Machine. The Machine contains one visible item; after the Machine pays out, another one will be displayed. A grapple is above the items. The Machine pays out prizes from the Crane Game item pool.

Bumping into the Machine consumes 5 cents and activates the grapple, which will attempt to grab the item in the center. If it succeeds, the item will be taken out of the Machine and appear on a pedestal.

There is a 25% chance for the Machine to pay out, so the probability of the machine paying out after at most $N$ tries is $1-(3/4)^N$ . The Machine explodes after giving 3 prizes.

Alternatively, it can be destroyed with a bomb, which will cause it to drop several pickups.

Items can be obtained repeatedly from the Crane Game if they have not been touched.

Once all items in the Crane Game item pool have been picked up, the Crane Game will only dispense Buddy in a Box.

Leaving the room while the animation is still playing after winning will cause the reward to not spawn.

Unlocked by: Defeat Mega Satan as Tainted Samson. Will be replaced with a Slot Machine if not unlocked.

Confessional []

The Confessional is an object added in The Binding of Isaac: Repentance. It damages Isaac with the same rules as the Blood Donation Machine in exchange for various rewards. It can be found in Super Secret Rooms or Angel Rooms, but can rarely be found in normal rooms.

The Confessional has a 30% chance on Normal Mode and 25% chance on Hard Mode to pay out. This is increased by 1.5× if Isaac has Lucky Foot.

The following are the rewards and are evaluated in the order they are listed.

5% chance to explode.
3.3% chance to explode giving an Angel Room item.
- If a Deal with the Devil has been made this run, it will instead give Redemption.
Removes a Broken Heart, if Isaac has one.
46.875% chance to receive a Soul Heart. Reduced to 9.375% if Isaac has Daemon's Tail.
3.125% chance to receive an Eternal Heart. Reduced to 0.125% if Isaac has Daemon's Tail.
"You Feel Blessed!": Removes an active curse. For the current floor, increases Angel Room chance by 10% and allows Isaac to find an Angel Room even if he already made a Deal with the Devil. This effect stacks additively, going up to a 100% Angel Room chance at 10 activations.
- If Isaac hasn't seen any Devil Rooms or Angel Rooms before and the fortune is activated once, the deal on that floor is guaranteed to be an Angel Room.

Alternatively, it can be destroyed with a bomb, which will cause it to drop pickups as well as a chance to drop trinkets. Despite its appearance, destroying a Confessional does not affect Angel Room or Devil Room chance.

Unlocked by: Defeat Mega Satan as Tainted Bethany. Will be replaced with a Soul Heart if not unlocked.

Notes[]

Invulnerability and shields can be used to prevent damage from it.

Revive Machine[]

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The Revive Machine is an object added in The Binding of Issac: Repentance+. It appears in the starting room of each floor and the shop in Greed Mode, exclusively on Online mode. Bumping into the revive machine takes one cent. after a certain amount of money is given to the machine, it will revive a player.

The amount of money it takes to revive a player depends on how many players have been revived in the past; starting at 10, and increasing depending on the amount of people revived.

If multiple people are dead when the machine is activated, it will make the player using it choose what player to revive

Bombing the machine has a small chance to drop an eternal heart, and spawn a rare item.

Donation Machine[]

See Donation Machine.

Greed Donation Machine[]

See Greed Donation Machine.

Unlockable Achievements[]

Blood Bag - Use the Blood Donation Machine 30 times.

The D4 - Blow up 30 Slot Machine.

Trivia[]

Several messages from the Fortune Telling Machine are references to famous quotes, usually from video games:
- The message "Your princess is in another castle" is a reference to a famous quote from the 1985 NES game Super Mario Bros.
- The messages "It is dangerous to go alone" and "Go to the next room" are references to quotes from the 1986 NES game The Legend of Zelda; the former is usually followed up with "Take this".
- The message "You will die" is likely a reference to a famous quote from the Philips CDi game Zelda: The Wand of Gamelon.
- The message "I Feel Asleep!!!" is a reference to a famous quote from the 1988 NES game Metal Gear.
- The message "Look to La Luna" is a reference to a hint on how to unlock the hidden character Reptile on the 1992 game Mortal Kombat.
  - "La Luna" Also means "The Moon" In Spanish.
- The message "Come to a fork in the road - Take It" is a reference to a famous quote from baseball hall-of-famer Yogi Berra.
- The message "Steven Lives" is a reference to Time Fcuk, a previous game of Edmund McMillen's which is heavily referenced in Isaac.
- The message "Use bombs wisely" is a reference to a quote in Star Fox 64.
Despite the superstitious tradition that breaking a mirror gives seven years of bad luck, destroying Mom's Dressing Table does not affect the Luck stat.