Added in Afterbirth Achievements


Welcome to The Binding of Isaac achievement guide. Click on an achievement to learn more.

Description
Unlock
In-Game Secret Number

Mega

Unlocked...
Defeat Mega Satan as every character
276
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Generosity

If only everyone was as generous as you are...
Donate 999 coins to the Greed Machine
275
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The Guardian

Unlocked Challenge #30.
Defeat Mom for the 1st time
274
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Onan's Streak

Unlocked Challenge #29.
Defeat Mom for the 1st time
273
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PRIDE DAY!

Unlocked Challenge #28.
Defeat Mom for the 1st time
272
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BRAINS!

Unlocked Challenge #27.
Defeat Isaac 5 times
271
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I RULE!

Unlocked Challenge #26.
Defeat ??? or The Lamb for the 1st time, and defeat Satan as Isaac
270
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Have a Heart

Unlocked Challenge #25.
Defeat Mom for the 1st time
269
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Blue Bomber

Unlocked Challenge #23.
Destroy 10 tinted rocks and defeat Mom's Heart 11 times
267
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SPEED!

Unlocked Challenge #22.
Defeat Mom for the 1st time
266
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XXXXXXXXL

Unlocked Challenge #21.
Defeat Mom for the 1st time
265
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Sale Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as Keeper
264
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Belial Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as Judas
263
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Revenge Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as Samson
262
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Picky Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as Cain
261
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Dark Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as Lilith
260
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Sucky Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as Azazel
259
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Blinding Baby

Unlocked a new co-player baby.
Use Blank Card while holding XIX - The Sun
258
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Dripping Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as Lazarus
257
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Cracked Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as Eden
256
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Whore Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as Eve
255
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Colorful Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as Magdalene
254
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Buddy Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as Isaac
253
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Hive Baby

Unlocked a new co-player baby.
Earn all hard mode completion marks as ???
252
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Keeper

Unlocked a new character.
Donate 1000 coins to the Greed Machine
251
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Lostholds Holy Mantle

Unlocked a new starting item.
Donate 879 coins to the Greed Machine
250
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Store Key

Unlocked a new item.
Donate 666 coins to the Greed Machine
249
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Eve now holds Razor Blade

Unlocked a new starting item.
Donate 439 coins to the Greed Machine
248
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Special Shopkeepers

Unlocked a secret.
Donate 234 coins to the Greed Machine
247
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Everything is Terrible 2!!!

Greed just got harder!
Donate 111 coins to the Greed Machine
246
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Cainholds Paperclip

Unlocked a new starting item.
Donate 68 coins to the Greed Machine
245
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Wooden Nickel

Unlocked a new item.
Donate 30 coins to the Greed Machine
244
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Special Hanging Shopkeepers

Unlocked a secret.
Donate 10 coins to the Greed Machine
243
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Lucky Pennies

Unlocked a new item.
Donate 1 coin to the Greed Machine
242
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Super Greed Baby

Unlocked a new co-player baby.
Defeat Mom's Heart on hard mode as Keeper
241
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Sticky Nickels

Unlocked a new item.
Complete the Boss Rush as Keeper
240
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Karma

Unlocked a new item.
Defeat The Lamb as Keeper
239
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Keeperholds Store Key

Unlocked a new starting item.
Defeat Satan as Keeper
237
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10.01

Nerd x 1000000
Unlock all of the secrets and endings, and collect every item in the game
235
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Blue Womb

Unlocked a hidden chapter.
Defeat Mom's Heart 10 times
234
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Blank Rune

Unlocked a new item.
Complete challenge #30 (Removed in Afterbirth+ The unlock is bugged and actually unlocks Kidney Stone)
233
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Kidney Stone

Unlocked a new item.
Complete challenge #29 (Removed in Afterbirth+ The unlock is bugged and actually unlocks Blank Rune)
232
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D8

Unlocked a new item.
Complete challenge #28
231
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