Here is the full list of all 44 Utawarerumono: Mask of Deception achievements.
Unlocked all BGM.
On one map, defeated 10 enemies with 1 unit.
Unlocked all event visuals.
Destroyed Moznu's axe.
Challenged Dream Match for the first time.
Witnessed the ending of the game.
"Vurai" completed.
"He Who Conquers" completed.
"The Rescue" completed.
Used a Final Strike.
"Shadows" completed.
"Mononofu" completed.
Defeated the Boro-Gigiri.
Played Recollections.
"Conflict" completed.
"The Prisoners" completed.
"Nakwan" completed.
Broke through enemy's ZOC.
"Vice and Virtue" completed.
"Forbidden Games" completed.
Used Action Chain on yourself.
Successfully engaged in Critical 100 times.
Successfully executed a reactive Skill.
Accessed the Glossary.
"Elopement" completed.
"The First Mission" completed.
"Bandits and Brigands" completed.
Stopped an enemy movement with ZOC.
"A Familiar Threat" completed.
Spent a bonus point.
"Extermination" completed.
Successfully executed an Action Chain.
Successfully executed a critical.
Equipped an item.
"Test of Will" completed.
Took advantage of enemy's weak attribute.
Watched the opening movie.
All trophies achieved.
"Remnants and Remembrance" completed.
Defeated the Tatari Unkami.
Used Action Chain with all characters.
Used Final Strike with all characters.
Reached the max level for a unit.
Defeated more than 300 enemy units.