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