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