Full list of all 72 Age of Wonders 4 achievements worth 1,660 gamerscore. It takes around 80-100 hours to unlock all of the achievements in the base game.
The base game contains 44 achievements worth 1,000 Gamerscore, and there are 4 DLC packs containing 28 achievements worth 660 Gamerscore.
Complete "Rise of the Godir: Valley of Wonders."
Complete "Rise of the Godir: The Enchanted Archipelago."
Complete "Rise of the Godir: Crimson Caldera."
Complete "Rise of the Godir: The Eternal Court."
Complete "Rise of the Godir: Grexolis."
Complete "Rise of the Godir: Grexolis" without any of your allies getting defeated
Recruit all Wizards of Evermore to your Pantheon (Yaka, Nimue, Arachna, Fangir, Artica, and Karissa)
In "Rise of the Godir: Valley of Wonders," wage war against Sundren
In "Rise of the Godir: Crimson Caldera," defeat all the contesting Godir through regular conquest
In "Rise of the Godir: The Eternal Court," defeat Meandor through regular conquest
Reach a Military Victory
Reach an Expansion Victory
Reach a Magic Victory
Win a game as a Champion
Win the game as a Wizard King
Unlock a Tier V Order Affinity tome
Unlock a Tier V Chaos Affinity tome
Unlock a Tier V Astral Affinity tome
Unlock a Tier V Materium Affinity tome
Unlock a Tier V Nature Affinity tome
Unlock a Tier V Shadow Affinity tome
Found your first city
Clear an Ancient Wonder
Choose a Signature Skill for a hero
Breach a city's walls
Sell the remains of a hero in the crypt
Excavate a province in the Underground
Integrate a Free City into your empire
Create an alliance with another Ruler
Fill all the equipment slots of a single hero
Complete a collection of Magic Materials
Have your race undergo 3 race transformations
Complete all levels of the Wizard's Tower in a Tier 4 Throne City
Have 20+ Recruitment Points available in the Rally of the Lieges
Renegotiate your freedom after becoming a vassal
Own a dragon
Win a high risk battle using manual combat
Start a moderately justified war using fabricated Grievances
Have a city with at least 150 Fortification Health
Cause at least 3 enemy units to rout during a single battle
Win the game having unlocked at least 1 tome of each of the 6 Affinities
Lead a faction of Dark Goblins to victory as a Lord of Chaos
Lead a faction of Halflings to victory as a human Wizard King
Unlock all Empire Skills of an Affinity of your choice
Win a game as a Dragon Lord
Acquire the Tome of Evolution and the Tome of Dragons
Get a Gold Dragon or an Obsidian Dragon
Have a Dragon Lord with a Major Transformation
Have 50 Gold Income from the Dragon Hoard
Have a Dragon of Fire, Frost, Gold and Obsidian origin
Complete "Empires and Ashes: Freed Lands of Manuhari"
Complete "Empires and Ashes: Sehiran Oasis"
In "Freed Lands of Manuhari", slay the Warden of Manuhari at least 5 times
In "Sehiran Oasis", encounter the Chaos Endailon
Reach a Seals Victory
Use Intimidate 3 times on the same Free City
Recruit a unit of tier 3 or higher by subduing them
Have an Ironclad use all types of Ammunition in a single battle
Forge an item with a custom name
Forge a ring with 3 or more infusions, including Universal Camouflage
Consume 6 Flora Obstacles in a single battle
Complete a Primal Spirit Quest and become a Primal Avatar
Cover one of your city's entire domain in mist
Lead a Naga transformed faction to victory as an Arch Mage
Complete "Eldritch Realms: Tharru'Cath"
Complete "Eldritch Realms: Arcalot"
In "Tharru'Cath", meet the Shadow Endailon
Win a game as an Eldritch Sovereign
Build a Sanctuary Outpost in the Umbral Abyss
Visit all types of Visit Site in the Umbral Abyss in a single playthrough
Bring an end to the mists in the Toll of Seasons
Lead an Umbral transformed Insectoid faction to Victory