Here is the full list of all 11 KIRO II: The Wizards Guild achievements.
You slayed a slugwyrm, how do you feel about that?
You defeated a bat, was it a grand slam?
You demolished a rock and should be proud of that
After ridding the world of the maleficus the whispers in your head should probably stop
You slayed a different slugwyrm, how do you feel about that?
You demolished a rock in a forest and that is pretty neat
This seems like less of a monster and more of just a regular animal but you slayed it anyway
This Oni won't be marching to the beat of his drum anymore
All of the monsters will be slightly sadder now that nobody is left to heal them
You could eat boar for days if only you had a refrigerator
You stopped horsin' around and slayed the centaur of Findle Forest