Grimmer Darkness
Kill 40001 units.
Ultra rare0.000%last reported global rate
Steam
ZEPHON Achievements
Official Steam achievement definitions and latest reported global unlock rates, ordered from rarest to most common.
Total achievements96
Rarest rate0.000%
Ultra rare32
Last checkedOct 17, 2026
Delayed official data
Rates and award counts were last observed on Oct 17, 2026.
Stronger Defenses Gave Me More Time For Peace
No public description is available.
Ultra rare0.000%last reported global rate
I Saw The World, More Deeply
No public description is available.
Ultra rare0.100%last reported global rate
Just Sat Back, Hoarded, And The Money Flowed In
Choose The Deep statement.
Ultra rare0.100%last reported global rate
The World Was New Every Day
Choose The Deep statement.
Ultra rare0.100%last reported global rate
I Knew Love, Then
No public description is available.
Ultra rare0.200%last reported global rate
Multiverse of Madness
Win a game on nightmare difficulty with all mutators active in ironman mode against at least 1 AI player for each human player and without predefined teams.
Ultra rare0.200%last reported global rate
Strange Loops
Win a game with all mutators active in ironman mode against at least 1 AI player for each human player and without predefined teams.
Ultra rare0.200%last reported global rate
We Rode To The Sunset And Beyond
No public description is available.
Ultra rare0.200%last reported global rate
Better To Innovate Than Replicate
No public description is available.
Ultra rare0.300%last reported global rate
Nobody Can Make It Out Here Alone
No public description is available.
Ultra rare0.300%last reported global rate
One Lie And They Shunned Me
No public description is available.
Ultra rare0.300%last reported global rate
We Have Been Human, Acrin and Machine
No public description is available.
Ultra rare0.300%last reported global rate
Did I Doom My Friends?
Unlock the mutator.
Ultra rare0.400%last reported global rate
Total Freedom Differs Little From Rolling A Die
No public description is available.
Ultra rare0.400%last reported global rate
What Is Truly Worthy Of Worship?
Unlock the mutator.
Ultra rare0.400%last reported global rate
A Fine Peaceful People, Wasted On A Mistaken Prophecy
No public description is available.
Ultra rare0.500%last reported global rate
From Death To Eternal Life In Some Abominable Form
No public description is available.
Ultra rare0.500%last reported global rate
I—She—Felt Again
No public description is available.
Ultra rare0.500%last reported global rate
We Took No Pleasure In Our Victory
No public description is available.
Ultra rare0.500%last reported global rate