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