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