Full list of all 56 Tales of Zestiria achievements. It takes around 100-120 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there is 1 DLC pack containing 6 achievements.
This is proof that you've witnessed the resolution of this story. Now you can try playing again with various changes to the gameplay, or you might venture into the daunting bonus dungeons.