Binding of Isaac: Rebirth Wiki
(in Repentance)
First page of the bestiary

The bestiary is a new addition to The Binding of Isaac: Afterbirth † that is accessible through the "Stats" menu. The Bestiary shows information and statistics on all encountered monsters and bosses except for some alternate forms of some enemies.

It shows the number of times an enemy has been encountered, how much health it has, how much damage it has done to Isaac, how many times it's been killed, and how many times it has killed Isaac.

Because Repentance added a lot of new enemies, the whole page layout was reworked, requiring this page to be separate from the Afterbirth † Bestiary.

Notes[ | ]

  • The order of the monsters starts with Rebirth enemies, then Afterbirth enemies, then Afterbirth †, and finally Repentance enemies.
  • Encountering a boss while fighting Boss Delirium ingameDelirium does not count towards the bestiary.
  • Seeded and challenge runs will affect bestiary entries, including whether an enemy has been found at least once or not, meaning that regardless of whether achievements are disabled or not, bestiary entries will still be updated.
    • This also means that enemies spawned using the developer console will be counted as well.
  • While fighting Boss Hush ingameHush, the Blue BoilBlue Boil will count as an encounter but the Blue Gaper will not. A Blue Gaper must be found on its own to be marked as an encounter.

Pages[ | ]

These are the monsters on each of the bestiary's pages.

(Click on the images to open the corresponding monster page.)

Monsters[ | ]

Page 1[ | ]

Frowning Gaper Gaper Flaming Gaper Rotten Gaper
Gusher Pacer Horf Fly
Pooter Super Pooter Tainted Pooter Clotty
Clot I.Blob Grilled Clotty Mulligan

Page 2[ | ]

Mulligoon Mulliboom Attack Fly Maggot
Hive Drowned Hive Holy Mulligan Tainted Mulligan
Charger Drowned Charger Dank Charger Carrion Princess
Globin Gazing Globin Dank Globin Cursed Globin

Page 3[ | ]

Boom Fly Red Boom Fly Drowned Boom Fly Dragon Fly
Bone Fly Sick Boom Fly Tainted Boom Fly Maw
Red Maw Psychic Maw Host Red Host
Hard Host Hopper Trite Eggy

Page 4[ | ]

Tainted Hopper Boil Gut Sack
Spitty Tainted Spitty Brain Leaper
Sticky Leaper Mr. Maw Mr. Red Maw Baby
Angelic Baby Wrinkly Baby Vis Double Vis

Page 5[ | ]

Chubber Scarred Double Vis Guts Scarred Guts
Slog Knight Selfless Knight Loose Knight
Brainless Knight Black Knight Stone Grimace Vomit Grimace
Triple Grimace Poky Slide Dople

Page 6[ | ]

Evil Twin Flaming Hopper Leech Kamikaze Leech
Holy Leech Lump MemBrain Mama Guts
Dead Meat Para-Bite Scarred Para-Bite Fred
Eye Bloodshot Eye Holy Eye Sucker

Page 7[ | ]

Spit Soul Sucker Ink Mama Fly
Bulb Bloodfly Tainted Sucker Embryo
Moter Spider Keeper Gurgle
Crackle Walking Boil Walking Gut Walking Sack

Page 8[ | ]

Buttlicker Hanger Swarmer Heart Solo
Half Heart Solo Mask Solo Mask II Solo Big Spider
Eternal Fly Stone Eye Constant Stone Shooter Cross Stone Shooter
Brimstone Head Mobile Host Nest Baby Long Legs

Page 9[ | ]

Small Baby Long Legs Crazy Long Legs Small Crazy Long Legs Fatty
Pale Fatty Flaming Fatty Fat Sack Blubber
Half Sack Death's Head Dank Death's Head Cursed Death's Head
Brimstone Death's Head Redskull Mom's Hand Level 2 Fly

Page 10[ | ]

Level 2 Spider Swinger Dip Corn
Brownie Corn Big Corn Wall Hugger Wizoob
Squirt Dank Squirt Cod Worm Ring Fly
Dinga Oob Black Maw Skinny

Page 11[ | ]

Rotty Crispy Bony Holy Bony
Homunculus Tumor Planetoid Camillo Jr.
Nerve Ending Nerve Ending 2 One Tooth Gaping Maw
Broken Gaping Maw Gurgling Splasher Grub

Page 12[ | ]

Wall Creep Soy Creep Tainted Soy Creep Rage Creep
Blind Creep Conjoined Spitty Round Worm Tube Worm
Tainted Round Worm Tainted Tube Worm Ragling Flesh Mobile Host
Psychic Horf Full Fly Ticking Spider Begotten

Page 13[ | ]

Nulls Psy Tumor Floating Knight Night Crawler
Dart Fly Conjoined Fatty Blue Conjoined Fatty Fat Bat
Imp Lil' Haunt Roundy Black Bony
Black Globin Black Globin's Head Black Globin's Body Swarm

Page 14[ | ]

Mega Clotty Bone Knight Cyclopia Red Ghost
Flesh Death's Head Mom's Dead Hand Dukie Ulcer
Meatball Corn Mine Hush Fly Blue Gaper
Blue Boil Greed Gaper Mushroom (Enemy) Poison Mind

Page 15[ | ]

Stoney Blister The Thing Ministro
Portal Lil Portal Tar Boy Fistuloid
Gush Leper Leper Flesh Mr. Mine
Enemy Blood Puppy Quake Grimace Bishop Bubbles

Page 16[ | ]

Wraith Willo Small Leech Deep Gaper
Sub Horf Tainted Sub Horf Blurb Strider
Fissure Polty Kineti Prey
Mullighoul Rock Spider Tinted Rock Spider Coal Spider

Page 17[ | ]

Fly Bomb Danny Coal Boy Blaster
Bouncer Quakey Gyro Grilled Gyro
Fire Worm Hardy Faceless Tainted Faceless
Necro Mole Tainted Mole Big Bony

Page 18[ | ]

Gutted Fatty Festering Guts Fanatic Candler
Whipper Snapper Flagellant Peeping Fatty
Vis Versa Level 2 Willo Pon Revenant
Quad Revenant Bombgagger Level 2 Gaper Level 2 Horf

Page 19[ | ]

Level 2 Gusher Twitchy Spikeball Small Maggot
Adult Leech Level 2 Charger Elleech Gasbag
Cohort Floating Host Unborn Pustule
Cyst Morningstar Mockulus Evis

Page 20[ | ]

Army Fly Migraine Drip Splurt
Cloggy Fly Trap Gas Dwarf Poot Mine
Dump Dump Head Grudge Butt Slicker
Bloaty Flesh Maiden Needle Pasty

Page 21[ | ]

Dust Baby Begotten Swarm Spider Cultist
Blood Cultist Vis Fatty Fetal Demon Dusty Death's Head
Shady Clickety Clack Maze Roamer Goat
Black Goat Poofer Ball and Chain Dead Isaac

Bosses[ | ]

Page 22[ | ]

Boss Larry Jr. ingame Boss The Hollow ingame
Boss Tuff Twins ingame Boss The Shell ingame

Page 23[ | ]

Boss Monstro ingame Boss Chub ingame
Boss C.H.A.D. ingame Boss Carrion Queen ingame

Page 24[ | ]

Boss Gurdy ingame Boss Ultra Pride Baby ingame
Boss Monstro II ingame Boss Gish ingame

Page 25[ | ]

Boss Mom ingame Sloth
Super Sloth Boss Ultra Pride Adult ingame

Page 26[ | ]

Lust Super Lust
Wrath Super Wrath

Page 27[ | ]

Gluttony Super Gluttony
Greed Super Greed

Page 28[ | ]

Envy Super Envy
Pride Super Pride

Page 29[ | ]

Boss Pin ingame Boss Scolex ingame
Boss The Frail ingame Boss Wormwood ingame

Page 30[ | ]

Boss Famine ingame Boss Pestilence ingame
Boss War ingame Boss Conquest ingame

Page 31[ | ]

Boss Death ingame Boss The Duke of Flies ingame
Boss The Husk ingame Boss Peep ingame

Page 32[ | ]

Boss The Bloat ingame Boss Loki ingame
Boss Lokii ingame Boss Fistula ingame

Page 33[ | ]

Boss Teratoma ingame Boss Blastocyst ingame
Boss Mom's Heart ingame Boss It Lives ingame

Page 34[ | ]

Boss Contusion ingame Boss Steven Big ingame
Boss Blighted Ovum Large ingame Boss Suture ingame

Page 35[ | ]

Boss Steven Little ingame Boss Blighted Ovum Spirit ingame
Boss The Fallen ingame Boss Krampus ingame

Page 36[ | ]

Boss Headless Horseman Body ingame Boss Headless Horseman Head ingame
Boss Satan ingame Boss Mask of Infamy Solo ingame

Page 37[ | ]

Boss Mask of Infamy Heart ingame Boss Gurdy Jr. ingame
Boss Widow ingame Boss The Wretched ingame

Page 38[ | ]

Boss Daddy Long Legs ingame Boss Triachnid ingame
Boss Isaac thirdphase ingame Boss ??? thirdphase ingame

Page 39[ | ]

Boss Gurglings ingame Boss Turdlings ingame
Boss The Haunt ingame Boss Dingle ingame

Page 40[ | ]

Boss Dangle ingame Boss Mega Maw ingame
Boss The Gate ingame Boss Mega Fatty ingame

Page 41[ | ]

Boss The Cage ingame Boss Mama Gurdy ingame
Boss Dark One ingame Boss The Adversary ingame

Page 42[ | ]

Boss Polycephalus ingame Boss The Pile ingame
Boss Mr. Fred ingame Uriel

Page 43[ | ]

Fallen Uriel Gabriel
Fallen Gabriel Boss The Lamb ingame

Page 44[ | ]

Boss Mega Satan ingame Boss Mega Satan secondphase ingame
Boss The Stain ingame Boss Brownie ingame

Page 45[ | ]

Boss The Forsaken ingame Boss Little Horn ingame
Boss Rag Man ingame Boss Ultra Greed ingame

Page 46[ | ]

Boss Ultra Greedier ingame Boss Hush ingame
Boss Rag Mega ingame Boss Sisters Vis ingame

Page 47[ | ]

Boss Big Horn ingame Boss Delirium ingame
Boss The Matriarch ingame Dark Esau

Page 48[ | ]

Mother's Shadow Boss Reap Creep ingame
Boss Lil Blub ingame Boss The Rainmaker ingame

Page 49[ | ]

Boss The Visage Heart ingame Boss The Siren ingame
Boss The Heretic ingame Boss Hornfel ingame

Page 50[ | ]

Boss Great Gideon ingame Boss Baby Plum ingame
Boss The Scourge ingame Boss Chimera ingame

Page 51[ | ]

Boss Rotgut ingame Boss Mother ingame
Boss Min-Min ingame Boss Clog ingame

Page 52[ | ]

Boss Singe ingame Boss Bumbino ingame
Boss Colostomia ingame Boss Turdlet ingame

Page 53[ | ]

Boss The Horny Boys ingame Boss Clutch ingame
Boss Dogma ingame Boss The Beast ingame

Page 54[ | ]

Boss Ultra Famine ingame Boss Ultra Pestilence ingame
Boss Ultra War ingame Boss Ultra Death ingame

Unlockable Achievements[ | ]

  • Sin collector
    Sin collector - Collect every entry in the Bestiary (bugged v190 - Mobs that don't exist in the bestiary are being counted. This allows Sin Collector to be unlocked without a complete bestiary).

Trivia[ | ]

  • Cross StoneyCross Stoneys are not featured in the Bestiary because they only appear in the Aprils Fool challenge and were added as a joke by _Killburn revealed in a tweet made on April Fools Day.
  • HenryHenry has no bestiary entry.

Bugs[ | ]

Bug Bug! The Bestiary is bugged with bosses that have multiple parts (such as Larry Jr., Pin, The Hollow, and so forth):
Bug Bug! The Visage's mask is not included in the Bestiary (only the Heart is), while both of Mask of Infamy's halves are included.
Bug Bug! The Sin Collector achievement can be obtained without a full Bestiary. It requires 2 entries less than what is actually featured.
Bug Bug! The Bestiary counts every time Delirium changes forms as separate encounters.