Full Gameplay Walkthrough...

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A Sister's Reminder	Complete Chapter 3.
A Taste of Strength	Collect one Blood Chalice.
Blood of My Blood	Complete Chapter 1.
Death from Above	Complete fourty dive attacks.
Defining Hour	Complete all chapters on Hard difficulty.
Elder Archivist	Collect all scrolls and finish the game.
Fate Fulfilled	Complete Chapter 4.
First Flight	Complete Chapter 10.
Firstborn	Complete Chapter 8.
Flicker of Endurance	Collect one Rune Triangle.
Hands of Fate	Leave Raziel a warning written in blood.
Insatiable Hunger	Feed hundred times.
Into the Demon Realm	Complete Chapter 12.
Lorekeeper of Nosgoth	Prove your mastery of Nosgoth's history.
Master of the Skies	Remain airborne as a vampire for 25 seconds.
Memories Unchained	Complete Chapter 9.
Price of Ascension	Complete Chapter 11.
Road to Resurrection	Complete Chapter 6.
Silence is Broken	Complete Chapter 7.
The Pillars Bear Witness	Complete Chapter 5.
Thus it is Decreed	Battle inevitability even when defeat is written in time.
Untouchable	Parry attacks from fifty different enemies.
Unyielding	Collect All Rune Triangles.
Vae Victis!	Complete all chapters on Nightmare difficulty.
Vessel of Power	Collect All Blood Chalices.
Willful Ignorance	Spurn knowledge and embrace confusion.
Zeal of the Sarafan	Complete Chapter 2.