Here is the full list of all 34 Tactics Ogre: Reborn achievements.
Defeated Regent Brantyn at the Royal City of Heim, enabling Catiua to declare an end to the blood war.
Defeated the guardian Nathalork.
Defeated the guardian Tlaloc.
Defeated the guardian Ifrit.
Defeated the guardian Vainateya.
Defeated the guardian Xolotl.
Defeated the guardian Lygenstzel.
Stormed Barnicia Castle and rescued Catiua from the Dark Knights.
Discovered the secret door on the third level of the Palace of the Dead, allowing access to the depths below.
Drove the Dark Knights from Phidoch Castle and wrested control of the south of Valeria.
Defeated the Bakram forces under the command of the Dark Knight Ozma and rescued the blind swordsman Hobyrim at the Arkhaiopolis of Rhime.
Defeated Sir Xaebos, commander of the Galgastani army remnants, at Almorica Castle.
Took Coritanae Keep and brought Hierophant Balbatos to justice.
Struck down Sir Leonar after he slew Duke Ronwey, becoming the leader of the Resistance.
Saved Xapan the Mercenary from pirates at Qadriga Fortress.
Carried out Duke Ronwey's chilling plan to slay the five thousand innocents in Balmamusa.
Confronted the Necromancer Nybeth at Qadriga Fortress and put an end to his dark experiments.
Rescued Duke Ronwey from imprisonment in Almorica Castle.
Collected all trophies.
Refused to participate in Duke Ronwey's heartless plan to massacre the innocents of Balmamusa, for which you were then blamed and made a wanted man.
Joined forces with Arycelle—one of the few who knew the truth of Balmamusa—and fought free of a trap laid by Vyce.
Befriended members of the Liberation Front at Boed Fortress.
Refused Sir Leonar's entreaty to return to the Resistance.
Heeded Sir Leonar's entreaty to return to the Resistance.
Slew the Dark Knight Oz at Boed Fortress and rescued Cerya.
Defeated Sir Xaebos, commander of the Galgastani army remnants, at Coritanae Keep.
Rescued Sir Leonar from imprisonment in Qadriga Fortress.
Saved the blind swordsman Hobyrim from the Resistance on the Bahanna Highlands.
Defeated Sir Xaebos, commander of the remnants of the Galgastani army, at Brigantys Castle.
Journeyed to Brigantys Castle, alone and unarmed, to parley with the Order of Philaha.
Defeated Dorgalua, the Dynast-King, as he returned from the Abyss.
Defeated Sirene, releasing Iuria from her spell.
Defeated the Necromancer Nybeth, who had embraced death and become a lich.
Ended the Heim Conflict in all three time lines.