Therapy
Clear Stage 1 in Endless.
Rare5.60%last reported global rate
Steam
SULFUR Achievements
Official Steam achievement definitions and latest reported global unlock rates, ordered from rarest to most common.
Total achievements132
Rarest rate0.000%
Ultra rare9
Last checkedSep 22, 2026
Delayed official data
Rates and award counts were last observed on Sep 22, 2026.
Sweet Tooth
Bake a mudcake.
Rare6.80%last reported global rate
Not Good Enough to Throw Grenades
No public description is available.
Rare7.20%last reported global rate
House Decorator
Unlock 10 upgrades for the church.
Rare7.50%last reported global rate
Mind Archaeologist
Clear a crypt.
Rare8.50%last reported global rate
It's over... or is it?
No public description is available.
Rare8.70%last reported global rate
Defeat Desert Claus
Merry Christmas you filthy animal.
Rare10.0%last reported global rate
Dethrone His Most Holy Emperor
Viva la resistance.
Rare13.1%last reported global rate
Room Decorator
Unlock 5 upgrades for the church.
Rare13.7%last reported global rate
Have a lot of pity
5,000 SULF reimbursed from the Church Collection.
Rare14.4%last reported global rate
MMM...
Kill 3000 enemies.
Rare15.0%last reported global rate
Meet Qiosk
Connect with the younger generation.
Rare15.7%last reported global rate
Gourmet Chef
Cook escargot and Cuisses de grandeur.
Rare16.2%last reported global rate
Hoarder
No public description is available.
Rare17.9%last reported global rate
Defeat Terrorbaum
Keep the change you filthy animal.
Rare19.4%last reported global rate
Eagle Eye
Locate Jaques De Fector.
Uncommon21.3%last reported global rate
Stamp Addict
Complete 10 quests.
Uncommon21.6%last reported global rate
Actually not that bad
Finish an area with the Dirk and Wakizashi as your only weapons.
Uncommon23.0%last reported global rate
Defeat Lucia
May she finally rest.
Uncommon23.7%last reported global rate
Explosive Personality
Kill 5 enemies with a single grenade.
Uncommon24.7%last reported global rate