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