Binding of Isaac: Rebirth Wiki
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Binding of Isaac: Rebirth Wiki

Added in Repentance

The Mines are the second floor of the alternate path added in Repentance. This stage can be accessed by using 2 bombs to open the boarded up door that appears after defeating the boss of Caves Caves/Catacombs Catacombs/Flooded Caves Flooded Caves I or II, or Downpour Downpour/Dross Dross II. The alternative floor of the Mines is the Ashpit Ashpit, unlocked after beating every single boss from the Mines.

The Mines are significantly more difficult than their standard counterparts, filled with stone and fire-themed enemies that boast greater health, aggression and occasionally resistances to damage. Most obstacles are rocks or spiked rocks, while poops are almost non-existent. Tinted rocks have a high chance of spawning Tinted Rock Spiders. Travelling through it is only advised if you have already acquired 15►Knife Piece 1 Knife Piece 1 in Downpour Downpour and intend to access Corpse Corpse, however, you will still be presented with an additional, blind option in the item rooms.

After defeating the floor's boss, a door leading to the next alternate chapter - Mausoleum Mausoleum - appears. It requires 2 full hearts to open. The damage taken ignores almost every form of damage reduction, including 15►The Wafer The Wafer and invincibility. Unlike other methods of health donation, red hearts will not be prioritized over more valuable hearts.

Unique Elements[]

  • Minecarts - Several rooms contain rail tracks with minecarts racing around on them, usually containing enemies or hazards. These enemies can be defeated as normal, and doing so will destroy the minecart.
  • Throwable Bombs - Occasionally, you can find Bomb Grimaces that will infinitely produce pink, throwable bombs. Walking into one will cause Isaac to pick it up, lighting the fuse, and giving a short time window to rid of the explosive by pressing any of the fire buttons.
  • Dark rooms - Some rooms are very dark, like a more potent Curse of Darkness effect, leaving only a small aura of light around Isaac.

Acquiring the Knife Piece 2[]

If you have 15►Knife Piece 1 Knife Piece 1, a special double-sized room will spawn in Mines II containing a minecart and a broken length of rail track leading to a boarded up door, just like those that lead to a Bedroom. Behind this door lies the area in which 15►Knife Piece 2 Knife Piece 2 can be acquired. There are two methods for accessing this area:

  • If you have flight and 2 bombs, you can simply fly over to the boarded up door and blow it open.
  • Otherwise, you can repair the track. There are three yellow buttons spread throughout the floor. One will be in the same room as the broken rail track, but the other two are randomly placed. Once all three buttons are pressed, the rail track will be repaired and you can touch the minecart to access the area.

Upon entering this area, all passive and active items will be rendered inactive, and your bombs, coins, and keys will be set to zero. New pickups can still be obtained, however, and will persist after Isaac leaves the area. You will pass through several empty rooms before reaching a room with the 15►Knife Piece 2 Knife Piece 2. Once you pick it up, Mother's Shadow will spawn and your race back to the entrance begins. This enemy cannot be defeated by any means, and escape is your only option.

Unlike your initial trip to reach the 15►Knife Piece 2 Knife Piece 2, the path back will be obstructed by rocks and poops. While flying characters can handle all of this with ease, walking characters will have a significantly harder time. Using your tears and the conveniently-located throwable bombs, you will need to break through the obstructions, press buttons, and grab keys for key blocks to make it back to the main dungeon. Making it out taking little or no damage is possible, particularly if you are fast and accustomed to dodging the shadow's attacks. Once you escape, all your items will be reactivated, and the shadow will end its pursuit.

  • It is possible for the floor's crawl space to appear on your escape path. Upon entry, your items will temporarily be reactivated, and you will be able to pick up any items/consumables available. Items will become inactive again after exiting. Mother's Shadow will still appear in the crawl space, and the enclosed area makes the dodging of her attacks very difficult.

Monsters[]

Entity ID Description
Rock Spider
Rock Spider
818.0 Slowly crawls around the room. If it sees Isaac, it crawls at him, trying to deal contact damage. Turns into a Spider upon death. Turns into a Coal Spider if it touches fire.
Coal Spider
Coal Spider
818.2 Quickly crawls around the room. If it sees Isaac, it crawls at him, trying to deal contact damage. Turns into a hot coal upon death that blocks shots and deals contact damage, but can be destroyed.
Tinted Rock Spider
Tinted Rock Spider
818.1 Quickly crawls around the room. If it sees Isaac, it crawls at him, trying to deal contact damage. Turns into a Soul Heart upon death. Can only spawn by breaking tinted rocks on Mines or Ashpit.
Fly Bomb
Fly Bomb
819.0 Flies toward Isaac, circling around him as it does. Turn into a tiny bomb upon death.
Danny
Danny
820.0 Walks toward Isaac and spits chaotic bursts of rocks at him, some of which may be Rock Spiders.
Coal Boy
Coal Boy
820.1 Walks toward Isaac and spits hot coals at him, some of which may be Coal Spiders.
Blaster
Blaster
821.0 Slowly wanders around and occasionally shoots Fly Bombs at Isaac.
Bouncer
Bouncer
822.0 Wanders around the room, avoiding Isaac. If Isaac stays close to one for long enough, it inflates and starts chasing him, gaining a chance to deflect shots and causing it to explode into lingering blood shots on death.
Stoney
Stoney
302.0 Chases Isaac and blocks tears, but does not deal contact damage. Temporarily pauses in exhaustion after a certain amount of time. Invulnerable; dies when the room is cleared.
Quakey
Quakey
823.0 Walks slowly toward Isaac, occasionally attempting to jump on Isaac, shooting out 8 rock shots when it hits the ground and causing rocks to fall from the ceiling.
Gyro
Gyro
824.0 Rolls around like a wheel. Charges at Isaac when he is in line of sight, bouncing off of walls and obstacles as it does.
Grilled Gyro
Grilled Gyro
824.1 Rolls around like a wheel. Charges at Isaac when he is in line of sight, bouncing off of walls and obstacles and creating fires behind itself as it does.
Fire Worm
Fire Worm
825.0 Pops out of the ground in random locations and fires one flame at Isaac.
Dip
Dip
217.0 Slowly dashes in random directions, dealing contact damage.
Hardy
Hardy
826.0 Dashes toward Isaac and deals contact damage creating rock projectiles when it hits a wall/obstacle. It spawns more rock projectiles the more times it crashes into obstacles, dying after doing so a third time.
Gurgle
Gurgle
87.0 Walks towards Isaac, firing Ipecac shots at him. Can turn into a Splasher upon death.
Faceless
Faceless
827.0 Wanders around the room, rarely firing a radial burst of six shots. Chases Isaac and fires shots more frequently after taking damage.
Mole
Mole
829.0 Burrows towards Isaac and jumps out the ground to fire 3 blood shots at him.
Ink
Ink
61.3 Flies slowly towards Isaac. Fires four tar shots in the ordinal directions and leaves a puddle of slowing black creep upon death.
Migraine
Migraine
869.0 Crawls around the room erratically, following Isaac and dealing contact damage. Can jump small distances. Releases multiple Troll Bombs upon death.
Soy Creep
Soy Creep
240.1 Slowly crawls along walls to try to line up with Isaac and shoots a stream of shots seemingly affected by 15►Soy Milk Soy Milk.
Wall Hugger
Wall Hugger
218.0 Moves around the room like Guts, damaging Isaac by contact. Cannot be destroyed.
Splasher
Splasher
238.0 Walks aimlessly around the room, firing Ipecac shots in random directions.
Chubber
Chubber
39.2 Randomly wanders around the room. Pauses to fire a Charger that deals one heart of damage when Isaac gets in its line of sight. The Charger is invulnerable, blocks Isaac's tears, has limited range, and flies back to the Chubber.
Bulb
Bulb
61.5 Flies in erratic, angled movements toward Isaac if his active item has charges. Drains active item charges instead of dealing damage.
Dragon Fly
Dragon Fly
25.3.0 Flies around the room diagonally, dealing contact damage. Upon death, creates four lines of fire in the cardinal directions.
Dragon Fly X
Dragon Fly X
25.3.1 Flies around the room diagonally, dealing contact damage. Upon death, creates four lines of fire in the ordinal directions.
Hard Host
Hard Host
27.3 Stationary enemy that is normally invulnerable. Raises its head up when Isaac gets close, revealing a fleshy stem that can be damaged. Shortly after raising its head, it slams its head down and fires a rock wave towards Isaac.
Blister
Blister
303.0 Slowly hops towards Isaac, occasionally spawning a Dark Ball. Spawns a Sack upon death.
Pon
Pon
840.0 Hops around the room, leaving damaging red creep wherever it lands. Upon death, its associated Brainless Knight dies with it.
Crispy
Crispy
226.2 Slowly walks towards Isaac, but increases in speed as they take damage. Constantly passively takes damage.
Bony
Bony
227.0 Wanders around the room and throws a bone at Isaac when he is in sight.
Black Bony
Black Bony
277.0 Wanders around the room and throws three bones in a row at Isaac when he is in sight. Explodes upon death.
Stone Grimace
Stone Grimace
42.0 Stationary and invulnerable monster that occasionally fires a blood shot at Isaac. Stops firing when room is cleared.
Vomit Grimace
Vomit Grimace
42.1 Stationary and invulnerable monster that occasionally fires an Ipecac shot at Isaac. Stops firing when room is cleared.
Constant Stone Shooter
Constant Stone Shooter
202.0 Stationary and invulnerable monster that continuously fires shots in a single direction.
Cross Stone Shooter
Cross Stone Shooter
202.10 Stationary and invulnerable monster that continuously fires shots in four directions, alternating between cardinal and ordinal.
Bomb Grimace
Bomb Grimace
809.0 Stationary and invulnerable monster that keeps a single Throwable Bomb spawned.
Quake Grimace
Quake Grimace
804.0 Stationary and invulnerable monster that jumps and fires a line of rocks in one direction upon landing.
Wall Hugger
Wall Hugger
218.0 Moves around the room like Guts, damaging Isaac by contact. Cannot be destroyed.

Bosses[]

Boss Hornfel.png
Boss Tuff Twins.png
Boss Great Gideon.png
Boss Reap Creep.png
Hornfel Needs to be unlocked Tuff Twins Needs to be unlocked Great Gideon Needs to be unlocked Reap Creep Needs to be unlocked

Trivia[]

  • In Antibirth, Mines used to have a different way of unlocking 15►Knife Piece 2 Knife Piece 2. Somewhere on the floor, there used to be a room containing four buttons. In the room, next to each button, was 1 to 4 small pebbles, indicating the order in which to press them. After you pressed the four buttons, the 15►Knife Piece 2 Knife Piece 2 would appear in the center of the room. This also wasn't the last knife piece, as there was a third one you needed to collect on the Mausoleum Mausoleum floor.
  • As well as that, Antibirth also featured a music track by Mudeth for the Mines floor.
  • Moles will open their eyes if encountered in a dark room, however, this doesn't change their behavior.


SmallIsaac.pngChaptersSmallIsaac.png
Chapter 1 Chapter 2 Chapter 3 Chapter 4 Optional Chapter 5 Chapter 6 Endgame
Normal and hard modes only Stage Basement icon.png Stage Caves icon.png Stage Depths icon.png Stage Womb icon.png Stage Sheol icon.png
Sheol


Stage Cathedral icon.png
Cathedral
Stage Dark Room icon.png
Dark Room


Stage Chest icon.png
The Chest
The Basement The Caves The Depths The Womb
Added in Afterbirth Added in Afterbirth †
Stage Cellar icon.png Stage Catacombs icon.png Stage Necropolis icon.png Stage Utero icon.png ??? Stage The Void icon.png
The Cellar The Catacombs Necropolis Utero ??? The Void
Added in Afterbirth Added in Afterbirth Added in Afterbirth Added in Afterbirth
Stage Burning Basement icon.png Stage Flooded Caves icon.png Stage Dank Depths icon.png Stage Scarred Womb icon.png
Burning Basement Flooded Caves Dank Depths Scarred Womb
Added in Repentance Added in Repentance Added in Repentance Added in Repentance Added in Repentance
Stage Downpour.png Stage Mines icon.png Stage Mausoleum icon.png Stage Corpse icon.png Stage Home icon.png
Downpour Mines Mausoleum Corpse Home
Added in Repentance Added in Repentance Added in Repentance
Stage Dross icon.png Stage Ashpit icon.png Stage Gehenna icon.png
Dross Ashpit Gehenna
Added in Afterbirth
Greed and greedier modes only
Added in Afterbirth Added in Afterbirth
Stage Basement icon.png Stage Caves icon.png Stage Depths icon.png Stage Womb icon.png Stage Sheol icon.png The Shop Ultra Greed
The Basement The Caves The Depths The Womb Sheol The Shop Ultra Greed
The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
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