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