Here is the full list of all 14 逆光 Sunwards achievements.
Enter Hegel's nightmare
Beat Shadow of Anger
Beat Shadow of Inferiority
Beat Immortal Obsession
Beat Lost Hero
Beat Cold Friend
Beat Shadow of Despair
Beat Shadow of Fear
Beat Fanatical Friend
Beat Judge of Abyss
Beat Hegel
Active all memory points
Get all skills
Get all runes