Here is the full list of all 25 Age of Fear: The Free World achievements.
You have been defeated!
Trick or treat!
Upgrade any unit to Elite!
Read the whole game guide!
You have hoarded 10000 Gold coins!
Your hero became Archmage!
Your hero became Ancient Banshee!
Your hero became Black Knight!
Your hero became Chieftain!
Your hero became High Priest!
Your hero became Lich!
Your hero became Paladin!
Your hero became Troll Thrower!
Your hero became Warlock!
Your hero became Battle Armour!
Your hero became Chaos Mage!
Your hero became Demon Mistress!
Your hero became Dwarf Lord!
Your hero became Ent!
Your hero became Forgemaster!
Your hero became Fungusoid Elder!
Your hero became Mancubus Brute!
Your hero became Nature Sorceress!
Find hidden Mimic!