Here is the full list of all 34 A Tale of Two Kingdoms achievements.
See all 20 cutscenes in one playthrough
Obtain 100% wisdom rating
Obtain 100% honor rating
A fairy tale ending
Complete the game
Graduated as sorceress
End of the Line
Theylinn can sort itself out
I never liked that family anyway
Point of View
Capture the assassin
Robbing the robber
You have found solace
Borrowing isn't stealing
The Light of Truth
Rescued the tailor
Find the faerie gold
Spare the goblins
Counterattack on the goblins
Rescued the princess
Brought back the changeling
Complete Arawn's test
Pass the Pooka's test without shortcuts
First Strike
Everybody deserves at least one
Any two sides of an isosceles triangle...
Befriend the giant
Smuggle the shield out
Free yourself from captivity
The Other Kingdom
Lay of the Land
Show Geraint the ropes
Flight of the Dove
A Mixed Welcome