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