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