A Bag of Pennies
No public description is available.
Uncommon26.9%last reported global rate
Steam
The Binding of Isaac: Rebirth Achievements
Official Steam achievement definitions and latest reported global unlock rates, ordered from rarest to most common.
Total achievements641
Rarest rate2.60%
Ultra rare0
Last checkedSep 20, 2026
Delayed official data
Rates and award counts were last observed on Sep 20, 2026.
Rune of Hagalaz
No public description is available.
Uncommon27.1%last reported global rate
U Broke It!
Unlocked a new item.
Uncommon27.1%last reported global rate
Technology Zero
Unlocked a new item.
Uncommon27.3%last reported global rate
Something Icky
New boss in the womb!
Uncommon27.4%last reported global rate
A Bag of Bombs
No public description is available.
Uncommon27.7%last reported global rate
The D20
No public description is available.
Uncommon27.7%last reported global rate
Leprosy
Unlocked a new item.
Uncommon27.8%last reported global rate
Scarred Womb
Alt stage to the womb.
Uncommon27.8%last reported global rate
Haemolacria
Unlocked a new item.
Uncommon28.1%last reported global rate
Everything is Terrible 2!!!
Greed just got harder!
Uncommon28.3%last reported global rate
Lil' Chest
Unlocked a new item.
Uncommon28.5%last reported global rate
Ultra Hard
Unlocked a new challenge.
Uncommon28.5%last reported global rate
Lil Delirium
Unlocked a new item.
Uncommon28.6%last reported global rate
Apollyon
Unlocked a new character.
Uncommon28.7%last reported global rate
Delirious
No public description is available.
Uncommon28.7%last reported global rate
Baby-Bender
Unlocked a new item.
Uncommon28.8%last reported global rate
Glass Baby
No public description is available.
Uncommon28.8%last reported global rate
Backasswards
Unlocked a new challenge.
Uncommon28.9%last reported global rate
I RULE!
Unlocked Challenge #26.
Uncommon29.0%last reported global rate