Here is the full list of all 11 Stoneshard: Prologue achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Kill any enemy while experiencing Bad Trip.
Kill at least one vampire of every type.
Kill Ascended Archon without letting him eat a single corpse.
Complete the Prologue.
Collect and read all 5 diary pages.
Equip an item to every slot. Ring and amulet slots doesn’t count.
Kill Ascended Archon.
Have your health reduced to 1 point, survive and restore it back to at least 50%.
Complete the tutorial.
Die during the tutorial
Use Ether Inhaler.