This guide will help you to achieve 100% in Necrophosis.
Info
Currently 1 achievement is broken and will be necessary to replay some parts of the game to re-collect items. Fix should be published soon.
Video walkthrough covering all achievements (soon, after ach fix)
True waking

Pity the Weak Dispel the Voidlings.
Use machine on black creatures:
Coin (1/5)
Coin (2/5)
Use coins on altar
Shrine (1/3)
Skull (1/5)
Spine (1/4)
Skull (2/5)
Rancid Worship Interact with the Repulsive One.
1. When prayer walking
2. When praying to any of 3 brains (next both boys and hangman)
3. When praying in front of Red Cave before you enter inside
4. When praying in front of Red Cave after exit
5. When praying next to Khnum
6. When praying next to Gate
True Waking Begin the final cycle.
Beyond the gate
Tablet (1/7)
Tablet (2/7)

Tablet (3/7)

Tablet (2/7)

Tablet (3/7)


Devourment Get eaten.
Stand on hand
Skull (3/5)
Spine (2/4)
Tythonus the Seeker Return the vacant self.
Take mask
and give it back
Coin (3/5)
Shrine (2/3)
Beyond the Gate Get through the Reaper’s domain.
Down below
Spine (3/4)

Tablet (4/7)


Tablet (4/7)


Rend Asunder Learn more about the curse.
Tablet (5/7)
Skull (4/5)
Tablet (6/7)
Down Below Withstand the depths.
Blessing of creation
Sphere (1/3)
Enter red portal and examine bodies:

Lost Cycles Become conscious of one’s demise.
Sphere (2/3)
Titan’s Desire Read the primordial scripts.
Sphere (3/3)
Dead Treasure Find all profane currency.
Wisdom of the Departed Activate the ancient shrines.
Coin (4/5)
Coin (5/5)
Use coins on altar
Shrine (3/3)
Spine (4/4)
Blessings of Creation Acquire all the blessings.
Will of chaos
Tablet (7/7)

The divine execution

Will of Chaos Summon the Old One.
Oppressive Intellect Find all lore items. (currently broken)
Skull (5/5)
The Divine Execution End it all.