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