Mystery Gift
Unlocked a new item.
Uncommon48.1%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.
Samson
Unlocked a new character.
Uncommon48.3%last reported global rate
Ancient Recall
Unlocked a new item.
Uncommon48.5%last reported global rate
Loki's Horns
No public description is available.
Uncommon49.5%last reported global rate
The Necropolis
No public description is available.
Uncommon49.6%last reported global rate
Krampus
No public description is available.
Uncommon49.8%last reported global rate
Mom's Contact
No public description is available.
Common50.0%last reported global rate
Rubber Cement
No public description is available.
Common50.6%last reported global rate
There's Options
No public description is available.
Common52.2%last reported global rate
The Parasite
No public description is available.
Common52.8%last reported global rate
Aprils fool
Unlocked a new challenge.
Common53.8%last reported global rate
The Left Hand
No public description is available.
Common53.9%last reported global rate
The Book of Sin
No public description is available.
Common54.5%last reported global rate
Mr. Mega
No public description is available.
Common54.7%last reported global rate
Eden
Unlocked a new character.
Common55.0%last reported global rate
The Catacombs
No public description is available.
Common55.2%last reported global rate
Eve
Unlocked a new character.
Common55.3%last reported global rate
Have a heart
Unlocked Challenge #25.
Common57.1%last reported global rate
PRIDE DAY!
Unlocked Challenge #28.
Common57.1%last reported global rate
SPEED!
Unlocked Challenge #22.
Common57.1%last reported global rate