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