Here is the full list of all 14 Unearthing Mars 2: The Ancient War achievements.
Complete Chapter I
Complete Chapter II
Complete Chapter III
Complete Chapter IV
Complete Chapter V
Complete Chapter VI
Complete Chapter VII
Complete Chapter VIII
Complete Chapter IX
Complete Chapter X
Defeat the Berserker Beast without losing connection
Defeat the Harbinger without losing connection
Defeat the Black Sword without losing connection
Complete all other trophies