Here is the full list of all 109 The Age of Decadence achievements.
Make a generous contribution to Regulus' campaign, funding a new militia to keep the city 'safe'.
Complete the Assassins' Guild's questline in Ganezzar, staying true to the guild
Complete the Assassins Guild's questline in Ganezzar, siding with Varro
Complete the Assassins Guild's questline in Maadoran (serve Lord Gaelius and kill his enemies).
Kill the Guildmaster of the Assassins Guild and Lord Gaelius during an audience at his own palace.
Complete the Assassins Guild's questline in Maadoran (double-cross your Guildmaster and kill Lord Gaelius).
Complete the Assassins Guild's questline in Teron.
Die a hundred times and live again.
Enter a wizard's tower and slay the demon that dwells within it, cleansing the tower from evil.
Kill Belgutai to impress the Ordu with your martial prowess.
Acquire a rare extract of Amaranthus, use to make an elixir and drink it.
Receive training from five different people in the course of one game.
Solve both the raiders and the Aurelian outpost problems by killing everyone. Not very subtle, but extremely effective.
Have a heart to heart conversation with loremaster Sohrab and make him tell you everything he knows.
Convince a preacher from Ganezzar that you're the Chosen One, sent by the gods to lead mankind out of darkness.
Convince Centurion Flavius to introduce you to Lord Antidas.
Complete the Thieves Guild's questline in Ganezzar, siding with Glabrio
Complete the Thieves Guild's questline in Ganezzar, double-crossing Glabrio
Kill Faelan the Thrice Blessed
Complete the Thieves Guild's questline in Maadoran.
Fight your way out of Teron, leaving nothing but corpses behind.
Fast-talk your way out of Teron, getting past every obstacle standing between you and the open road.
Complete the Thieves Guild's questline in Teron.
Use an improvised explosive device to ambush the shipment and steal the gold.
You completed the first quest as a grifter.
Complete the Imperial Guards' questline in Ganezzar, siding with House Crassus
Complete the Imperial Guards' questline in Ganezzar, siding with House Aurelian
Fight your way to the top and become the new Champion of the Arena.
Fight the Ordu army at a narrow mountain pass and live to tell the tale.
Broker an alliance between House Daratan and the Imperial Guards.
Some Men Just Want to Watch the World Burn
Provoke Lord Antidas to attack the Imperial Guards delegation and kill him without hesitation, committing regicide.
Join the Imperial Guards to be All You Can Be.
Complete the first quest as a loremaster.
Complete the Merchants Guild's questline in Ganezzar as per Strabos' orders
Complete the Merchants Guild's questline in Ganezzar, embracing Meru's Creed
Complete the Merchants Guild's questline in Maadoran.
Outmaneuver your opponents and make Strabos the new magistratus of Maadoran.
Complete the Merchants Guild's questline in Teron.
Convince Lord Antidas to have Commander Carrinas killed without producing any proof.
Complete the first quest as a merchant.
You know what you have to do
Bring God's Kingdom to Earth
Complete the Praetor of House Crassus' questline in Ganezzar
Let sleeping dogs lie
Kill Agathoth to protect mankind
Ascend
Complete the Praetor of House Aurelian's questline in Ganezzar
Take the flying fortress for a spin
Help Hector achieve his goals
Make new friends and learn how to influence people
Improve your eyesight with a fashionable mechanical eye.
Acquire powerful artefacts and learn how to use them.
Acquire Power Armor and fully charge it
Discover and read the ancient tablets - the warning of the Magi
Take a ride in an ancient healing machine.
Explore the Tower of Zamedi.
Put a 'god' out of its misery, releasing it from the horror of its existence and ending the magic that haunted the Abyss for centuries.
“And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy My brothers. And you will know I am the Lord when I lay My vengeance upon you."
Acquire ten different artefacts to start a collection.
Fix the machines in the buried tower.
Do the right thing. You'll know what it is.
Visit a monastery up in the mountains
Make a deal with Legatus Carbo, promising him a worthy enemy and a war he’s always dreamt of.
Complete the Praetor of House Aurelian's questline in Maadoran.
Recover Darius’ helmet but keep such a valuable relic for yourself.
Pledge your fealty to House Aurelian, swearing to serve Lord Gaelius and observe your homage to him completely against all persons in good faith and without deceit.
Complete the first quest as a drifter.
Bring a new world order
Discover a long forgotten underground hangar
Visit Hellgate and live to tell the tale
Visit Dead River settlement
Hey, did you see that?
Learn how to use the ancient consoles
Visit Inferiae.
Visit an ancient arch - a site of many miracles
Visit the Library of Saross
Complete the Imperial Guards' questline in Ganezzar with the help of Commander Carrinas
You have a dangerous habit of betraying your masters.
Charge into the breach during the siege of Ganezzar
Visit the ruins of Al-Akia
Visit Ganezzar
Get promoted to the rank of Legatus.
Complete the Imperial Guards' questline in Maadoran.
Convince Belgutai to join Khan Thorgul and unite the Ordu tribe.
Visit an Ordu camp beyond the mountains.
Visit Harran's Pass.
Complete the Imperial Guards' questline in Teron.
Get promoted to the rank of Centurion.
Broker an alliance between House Daratan and convince Commander Carrinas to proclaim Antidas an Emperor.
Talk the raiders into attacking the Aurelian outpost for you to kill two birds with one stone.
Complete the first quest as a praetor.
Complete the first quest as a mercenary.
Explore the very heart of the Abyss.
Acquire five different relics of the past, without having any idea what most of them are for.
Find a way into Maadoran's sewers
Pledge your fealty to House Daratan, swearing to serve Lord Antidas and observe your homage to him completely against all persons in good faith and without deceit.
Infiltrate House Daratan’s compound and discuss employment opportunities with Lord Antidas, without having to jump through Dellar’s hoops first.
Complete the first quest as an assassin.
Visit Maadoran - the largest city in the known world.
Complete the first quest as a thief.
Died in the first fight.
Kill a hundred people in the course of one game.
Kill 200 people in the course of one game.
Complete the Praetor's questline in Teron.
Complete the Praetor of House Daratan's questline in Maadoran.
Help Lord Darganus keep the rabble at bay
Complete the Praetor of House Daratan's questline in Ganezzar
Destroy Al-Akia