Here is the full list of all 60 Oriental Empires achievements.
Build a Royal Palace.
Build a Legendary Shrine.
Upgrade a settlement to a large city.
Recruit fifty cavalry units in one game.
Win a battle with at least sixteen units on each side.
Conquer a settlement that has rebelled against you.
Build a ship unit.
Capture a city with a rammed earth or brick wall.
Kill three thousand enemy soldiers in one game.
Kill one thousand enemy soldiers in one game.
Win a battle with at least eight units on each side.
Reach turn 100.
Control one hundred hexes of farmland.
Found five settlements.
Upgrade a copper, gold or jade scrape to a mine.
Have one thousand gold income per turn from trade.
Issue an edict.
Connect two of your settlements with a trade route.
Win a battle.
Found a new settlement.
Found twelve settlements.
Win a total of one thousand battles.
Win a naval battle.
Win a naval battle with at least four ships per side.
Build a Summer Palace.
Build a Famous Legalist School.
Build a Famous Buddhist Temple.
Have thirty different encounters in one game.
Have three other factions as vassals.
Conquer ten settlements controlled by peasant rebels in one game.
Start a custom game.
Win the Grand Campaign scenario by a cultural victory using any faction.
Win the Grand Campaign scenario by a Son of Heaven victory using any faction.
Win the Grand Campaign scenario by a conquest victory using any farming faction.
Win the Grand Campaign scenario by a conquest victory using any herding faction.
Win three games of any type.
Win the Grand Campaign scenario with every faction.
Control a Famous Taoist Temple, a Famous Buddhist Temple, a Famous Confucian Temple, A Famous Legalist School, and a Famous Mohist School at the same time.
Complete a multi-player game.
Win the Warring States scenario.
Win a cultural victory in the Warring States scenario playing Lu.
Win a conquest victory in the Warring States scenario playing Qin.
Put four terror skulls on an enemy city.
Move the location of a horde settlement.
Issue a Kurultai edict.
Win the Life of Genghis Khan scenario with a conquest victory.
Win a conquest victory in the Time of the Mongols scenario using a Christian faction.
Win a cultural victory in the Time of the Mongols scenario playing Xi Xia and having at least 5 Famous Buddhist Temples.
Win a conquest victory in the Time of the Mongols scenario using a Muslim faction.
Win a cultural victory in the Time of the Mongols scenario playing a Muslim faction and having at least 5 Great Mosques.
Win the Time of the Mongols scenario.
Appoint a minister.
Appoint an advisor.
Win the Three Kingdoms scenario as Cao Cao.
Win the Three Kingdoms scenario as Liu Bei.
Win the Three Kingdoms scenario as Sun Jian.
Win the Three Kingdoms scenario as either Heishan or White Wave Bandits.
Win the Three Kingdoms scenario via a cultural victory as The Five Pecks and having at least 5 Famous Daoist Temples.
Win the Three Kingdoms scenario three times with three different factions.