Here is the full list of all 40 Falnarion Tactics III achievements.
Start up Falnarion Tactics III and select new game.
Defeat Prologue Chapter One.
Defeat Prologue Chapter Two.
Defeat Prologue Chapter Three.
Defeat Chapter One.
Defeat Chapter Two.
Defeat Chapter Three.
Defeat Chapter Four.
Defeat Chapter Five.
Defeat Chapter Six In Daylight.
Defeat Chapter Six At Night.
Defeat Chapter Seven.
Defeat Chapter Eight.
Defeat Chapter Nine.
Defeat Chapter Ten.
Defeat Chapter Eleven.
Defeat Chapter Twelve.
Defeat Chapter Thirteen.
Defeat Chapter Fourteen.
Defeat Chapter Fifteen.
Defeat Chapter Sixteen.
Defeat Chapter Seventeen.
Watch The Credits Roll.
Unlock Tei by defeating Golem's Lair.
Unlock Seraphina by defeating Stranded II.
Unlock Seren by defeating Beast Lair.
Unlock Irena by defeating Monster Hunter II.
Unlock Aldren by defeating The Heretic III.
Unlock Ayenna by defeating Dragon's Lair II.
Defeat the Heart of Heroes sidequest.
Defeat The Princess sidequest and unlock Yuki and Ren.
Unlock the rest of the sidequests and music by beating chapter 15.
Get to the ending title screen by beating the game.
Select Survival Mode at the start of a new game.
Unlock Astren and Astra by defeating The Machinist.
Unlock the Goblin Store.
Open and close the game.
Unlock Lyla Orbellium by defeating The Challenge.
Unlock Max by defeating the Forest of Dreams.
Discover an Item in the base.