-0- Baby
No public description is available.
Rare17.9%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.
D1
Unlocked a new item.
Rare17.9%last reported global rate
Wisp Baby
Beat the game in Hard mode with Bethany.
Rare17.9%last reported global rate
Smelter
Unlocked a new item.
Rare18.0%last reported global rate
Pandora's Box
No public description is available.
Rare18.1%last reported global rate
Blood Penny
No public description is available.
Rare18.2%last reported global rate
Betrayal
Unlocked a new item.
Rare18.3%last reported global rate
Green Baby
Unlocked a new co-player baby.
Rare18.3%last reported global rate
Sacrificial Dagger
No public description is available.
Rare18.4%last reported global rate
Serpent's Kiss
Unlocked a new item.
Rare18.4%last reported global rate
???'s Only Friend
No public description is available.
Rare18.6%last reported global rate
Store Credit
No public description is available.
Rare18.6%last reported global rate
The Broken
No public description is available.
Rare18.8%last reported global rate
Card Against Humanity
No public description is available.
Rare18.9%last reported global rate
Ashpit
Defeat all bosses in the Mines.
Rare19.0%last reported global rate
Missing No.
No public description is available.
Rare19.0%last reported global rate
Rune Bag
Unlocked a new item.
Rare19.0%last reported global rate
Mystery Sack
No public description is available.
Rare19.1%last reported global rate
Stop Watch
No public description is available.
Rare19.2%last reported global rate
Black Feather
Unlocked a new item.
Rare19.3%last reported global rate