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.

141

Bone Baby

No public description is available.

Rare

9.30%last reported global rate

142

Friend Finder

Complete the final chapter with Jacob and Esau.

Rare

9.30%last reported global rate

143

Keeper's Sack

Complete the Corpse with Keeper.

Rare

9.30%last reported global rate

144

Gello

No public description is available.

Rare

9.40%last reported global rate

145

Genesis

Beat Greedier mode with Jacob and Esau.

Rare

9.40%last reported global rate

146

Play Online

Play an online match

Rare

9.40%last reported global rate

147

Mom's Lock

No public description is available.

Rare

9.50%last reported global rate

148

Bird Cage

Complete the Corpse with Eve.

Rare

9.60%last reported global rate

149

Blood Puppy

Complete the Corpse with Lilith.

Rare

9.70%last reported global rate

150

Bloody Gust

Complete the Corpse with Samson.

Rare

9.70%last reported global rate

151

The Stars

No public description is available.

Rare

9.70%last reported global rate

152

Tinytoma

Complete the Corpse with Lazarus.

Rare

9.70%last reported global rate

153

Bone Spurs

Complete the Corpse with the Forgotten.

Rare

9.80%last reported global rate

154

Sale Baby

Unlocked a new item.

Rare

9.80%last reported global rate

155

Twisted Pair

No public description is available.

Rare

9.80%last reported global rate

156

Blinding Baby

Unlocked a new co-player baby.

Rare

9.90%last reported global rate

157

Eternal D6

Complete the Corpse with ???.

Rare

10.0%last reported global rate

158

Illusion Baby

Defeat Mega Satan with Jacob and Esau.

Rare

10.1%last reported global rate

159

Inner Child

Beat Greed mode with Jacob and Esau.

Rare

10.1%last reported global rate

160

Dripping Baby

Unlocked a new co-player baby.

Rare

10.2%last reported global rate