Here is the full list of all 57 Utawarerumono: Mask of Truth achievements.
Obtained all trophies.
Obtained all battle rewards.
Thank you for coming.
Completed all Dream Arena stages.
Dealt 5000+ damage to an enemy in one attack.
A job well done.
You can never go back...
Reduced to a mere beast.
You may never find warmth in this cold place.
Used Co-op Finals with all characters.
Used Final Strike with all characters.
Summoned shikigami 100 times.
Entered the Dream Arena.
Listened to all BGM tracks.
Viewed all event visuals.
Completed the ending.
Power does not conform to the shape of its vessel.
Stood together and faced your hardships.
Shocked and appalled by a horrific sight.
Won 20 Mock battles.
Attacked by those who are loyal unto death.
Listened to an unwelcome monologue.
Dealt 1000+ damage to an enemy in one attack.
Finally found what you were looking for.
Learned a crucial secret of a foreign land.
Opened the door to the bird's cage.
Saw your plans come to fruition.
Rampaged with no regard for those around you.
Dealt 500+ damage to an enemy in one attack.
Finally released your true strength.
Your voice went unheard. A false truth deafens him.
Confessed your sins.
Viewed 100 or more entries in the glossary.
Who is his vengeance truly for?
Viewed 500 or more battle callouts.
Had an unexpected reunion.
Experienced heaven and hell.
Proved that best-laid schemes often go awry.
Used a Final Strike.
A soldier must resort to underhanded tactics at times.
Used a Co-op Final.
Used a Co-op Attack.
Learned a man's final wish in a duel to the death.
Witnessed the bond between two sisters.
Encountered one of undying loyalty.
Played Munechika's Trials.
Found the one hiding in shadows.
Settled a long-standing score.
Managed to avert a crisis.
Cast away all mercy for your enemies.
Played Free Battle mode.
Successfully executed criticals 200 times.
Was accused of something you never did.
Successfully executed a reactive Skill.
Regained your sense for battle.
Successfully executed a critical.
Successfully executed an Action Chain.