Red Key
The other side is calling...
Uncommon21.9%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.
A Bandage
No public description is available.
Uncommon22.0%last reported global rate
Judas' Shadow
No public description is available.
Uncommon22.0%last reported global rate
Flat Stone
Unlocked a new item.
Uncommon22.3%last reported global rate
Jacob and Esau
You are just like your father...
Uncommon22.3%last reported global rate
Lazarus' Rags
No public description is available.
Uncommon22.3%last reported global rate
A Strange Door
Where could it lead to?
Uncommon22.4%last reported global rate
Isaac's Awakening
Unlocked a new challenge.
Uncommon22.4%last reported global rate
Seeing Double
Unlocked a new challenge.
Uncommon22.4%last reported global rate
Broken Ankh
No public description is available.
Uncommon22.6%last reported global rate
Counterfeit Coin
No public description is available.
Uncommon22.6%last reported global rate
Brimstone Bombs
Kill Hornfel before he escapes!
Uncommon22.7%last reported global rate
Chaos Card
No public description is available.
Uncommon22.7%last reported global rate
Crow Baby
No public description is available.
Uncommon22.8%last reported global rate
Greedier!
New mode unlocked!
Uncommon22.8%last reported global rate
Rotten Heart
Enter the Corpse...
Uncommon22.8%last reported global rate
Book of Secrets
No public description is available.
Uncommon23.0%last reported global rate
Dross
Defeat all bosses in Downpour.
Uncommon23.0%last reported global rate
Item Descriptions
Read Up!
Uncommon23.0%last reported global rate
My Shadow
Unlocked a new item.
Uncommon23.1%last reported global rate