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