Here is the full list of all 44 Utawarerumono: Mask of Deception achievements.
Witnessed the ending of the game.
"Vurai" completed.
"He Who Conquers" completed.
Used a Final Strike.
Equipped an item.
"The Rescue" completed.
"Shadows" completed.
"Mononofu" completed.
Broke through enemy's ZOC.
"Conflict" completed.
Used Action Chain on yourself.
"Remnants and Remembrance" completed.
"The Prisoners" completed.
"Nakwan" completed.
"Vice and Virtue" completed.
"Forbidden Games" completed.
"Elopement" completed.
"The First Mission" completed.
Accessed the Glossary.
"Bandits and Brigands" completed.
Spent a bonus point.
Stopped an enemy movement with ZOC.
"A Familiar Threat" completed.
"Extermination" completed.
"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 an Action Chain.
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 event visuals.
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.