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