Here is the full list of all 48 Dynasty Warriors 8: Empires achievements.
Have a subordinate officer abandon you for the first time.
Defeat more than 10,000 enemies using just Stratagems.
Obtain at least 30 items.
Use a Stratagem to change the weather.
Create a Kingdom comprised entirely of your sworn siblings, spouses and children.
Obtain at least 100 weapons.
Have at least three officers declare their love for you in a single lifetime.
Use at least 100 Stratagems.
Clear any scenario on the "Chaos" difficulty.
View any of the endings using a custom character.
Build at least six of the same facility.
Obtain virtue of "Pure Evil."
Receive a weapon or item as a gift for the first time.
Obtain virtue of "Saint."
Have a child for the first time.
Stop a Large Scale Stratagem being prepared by the enemy.
Capture 10 or more bases during a single battle.
Swear a sworn sibling oath for the first time.
Build a facility for the first time.
Became a Ruler for the first time.
Raise the banner of your own Kingdom for the first time.
Fight and win a stage in spring, summer, fall and winter.
Obtain 20 officers in your own Kingdom.
Get married for the first time.
Profess your love for someone or have someone confess their love for you for the first time.
Win a battle with significantly less allied forces than enemy ones.
Fight your way into enemy territory alone and defeat an officer.
Complete a Strategy Objective for the first time.
In Edit Mode, create at least one officer, banner, warhorse and soldier.
Win a battle with more than 90% of your total forces remaining.
Complete four Battle Objectives in a single battle.
Complete your first mission.
Accomplish all of the achievements in the game.
Complete all lifestyles.
Achieve all titles.
Use any custom character to defeat all of the famous officers.
Execute all Strategy Commands at least once.
Have a total of at least 5 children.
Make all famous officers into your subordinate officers.
View all of the events that can be watched in the Gallery.
Succeed your superior's position for the first time.
Get recruited as a Marshal or Strategist from being a Free Officer.
Rise in rebellion and become Ruler.
Perform a betrayal for the first time.
Be appointed as a Strategist for the first time.
Be appointed as a Marshal for the first time.
Take part in "Battle of Chibi - Allied Forces" & have Zhuge Liang's "Southeast Wind" strategy work.
Complete a Quest and deepen your friendship with your Ruler.