Here is the full list of all 44 Utawarerumono: Mask of Deception achievements.
Challenged Dream Match for the first time.
Unlocked all event visuals.
Witnessed the ending of the game.
"Vurai" completed.
"He Who Conquers" completed.
"The Rescue" completed.
"Shadows" completed.
"Mononofu" completed.
"Conflict" completed.
"Remnants and Remembrance" completed.
Defeated the Tatari Unkami.
"The Prisoners" completed.
Played Recollections.
"Nakwan" completed.
Broke through enemy's ZOC.
"Vice and Virtue" completed.
"Forbidden Games" completed.
Successfully engaged in Critical 100 times.
"Elopement" completed.
Successfully executed a reactive Skill.
Used Action Chain on yourself.
"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.
Equipped an item.
"Test of Will" completed.
Took advantage of enemy's weak attribute.
Successfully executed a critical.
Watched the opening movie.
Accessed the Glossary.
All trophies achieved.
Defeated the Boro-Gigiri.
Destroyed Moznu's axe.
Used a Final Strike.
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.