Here is the full list of all 54 Fallen Enchantress: Legendary Heroes achievements.
Win by defeating all of your opponents.
Win as Magnar.
Reach level 15 with a champion.
Recruit Gallowman
Win and have at least 3,000 population.
Win as Pariden.
Win by casting the Spell of Making.
You've managed to slay Vetrar!
Play for 20 hours.
Recruit Mausolos
Get a city to level 5 in one game.
Recruit Ascian
Not since Peter MacNicol has one been slain!
Tap 10 resources in a single game.
Play for 10 hours.
Defeat a faction.
Control 5 cities in a single game.
You have captured an enemy city!
You defeated a sovereign in battle!
Play for 5 hours.
Design a unit.
Explore 10 goodie huts in a single game.
Reach level 5 with a champion.
Buy an item from a shop.
You have defeated an army!
You killed a monster!
Your Fame has lead a hero to your cause.
Complete a quest.
All nations start with one.
You've managed to slay Abeix!
You've managed to slay Delin!
You've managed to slay Morian!
You've managed to slay Torax!
Awarded for completion of the Legendary Hero scenario.
Win by completing the Master Quest.
Win by forging an alliance with all players.
Win by having the highest score by the turn limit.
Win as Altar.
Win as Gilden.
Win as Tarth.
Win as Kraxis.
Win as Resoln.
Win as Yithril.
Complete 10 quests in a single game.
Make 1000 gildar from selling items in shops.
Play for 40 hours.
Play for 100 hours.
Create a custom sovereign.
Recruit Raza the Wild
Recruit Kasst
Recruit Tuatha
Recruit Nen Ratcatcher
Win as Capitar.
Win as Umber.