Follow the indicated steps to earn the corresponding Steam achievement. To view your achievement progress and stats, open the Steam client, select "Community", then search for the game hub for "Empire: Total War Naval". Click the "View Stats" option in the drop down list, then select the option that displays the achievements for your account.

Achievement	How to unlock
100 Men killed	You have killed 100 enemy men on the battlefield!
1000 Men killed	You have killed 1000 enemy men on the battlefield!
A New Rome	Demonstrate outstanding ability, and capture one hundred regions.
Accomplished Strategist	Complete the main campaign game on the easy difficulty setting.
Affairs of Honour	Use your duellists to kill twenty men on the "field of honour".
American Hero	Complete the Road to Independence campaigns freeing the American colonists from British rule!
Assassin!	Use your assassins to kill, in unlooked-for fashion, twenty men who hinder your plans.
Blooded	Demonstrate your sense of duty and honour	complete ten multi-player battles.
Bloody Madman	Carve a bloody path to victory	kill a hundred thousand enemies!
Command of the Ocean	As a commanding admiral, win ten multi-player naval battles.
Conqueror of All	Be hailed as a true conqueror	kill a million enemies!
Drumbeat to Victory	Draw the sword and march onwards	complete one quick battle.
Emperor of Europe	Subdue and hold all the provinces and regions in Europe at the same time.
Expansionist Power	Capture ten regions, anywhere in the world.
Founding Father	Take one region by conquest, somewhere in the world.
Get off my ship	You have disembarked off a fleet twice!
Grand Tactician	Win ten classic multi-player battles.
Into the Breach!	Attack! Attack! Attack! Win ten multi-player siege battles when commanding a besieging army.
Killed an Enemy General	You have killed an enemy general on the battlefield!
l337 Guard	Achieve victory in ten multiplayer battles, cutting a bloody path to greatness through your enemies' plans.
Maharajah of the Indies	Have mastery over all the provinces and regions in India at the same time.
Marshal's Baton	Achieve victory in fifty multiplayer battles, dashing your enemies' hopes in pieces in the process!
Master of the Americas	Conquer or control all the provinces and regions in the Americas at the same time.
Observe Diplomatic Niceties	Use diplomatic threats to good effect by making gains from five separate negotiations.
Only Obeying Orders	Ensure that thirty missions, regardless of detail or type, are successfully brought to a conclusion.
Perfidious Beast	Use treachery to best effect by turning against at least five allied nations and attacking them.
Polymath	Have your natural philosophers and scientists research all the technologies available to your nation.
Raw Recruit	War sir, is a terrifying experience! Take part in a multiplayer battle.
Strategic Genius	Complete the main campaign game on the hard difficulty setting.
The "Chevaux de Frise"	Defend, sir, defend! Win ten multi-player siege battles when commanding the defenders of a fortress.
The Efforts of Others	Successfully steal five technologies researched by other nations.
The Sea Wolf	Capture 20 enemy vessels in honest, manly battle against the foe!
Tyrant and Ogre	Bring terror to the hearts of men	kill half a million enemies!
Veteran Strategist	Complete the main campaign game on the medium difficulty setting.
Whiff of Grapeshot	Gain some experience of combat	complete one ranked battle.
Won a battle	You have won a battle!