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