Here is the full list of all 19 Shrouded in Sanity achievements.
Terrible idea!
Congratulations, well done!
Close to the truth.
Had enough yet?
May your bloodthirst be satiated...
Challenge accepted
Bad idea...
Visions from the new world.
True conclusion...
Unfit to rule. Doomed to repeat it.
Harbinger of things to come...
Nothing is ever free.
Subdued the 1st Knight.
Subdued the 3rd Knight.
Subdued the 4th Knight.
Subdued the 2nd Knight.
First time for everything...
Self defence...
Not in the position to negotiate.