Here is the full list of all 56 Eador. Masters of the Broken World achievements.
Finish the game with «Destroy all life» ending.
Encounter Dariol.
Eador remembers.
Lose the campaign to Chaos invasion.
Encounter Magnus.
Encounter the Nameless.
Encounter Ranadil.
Construct magic school of fourth tier.
Encounter Adrageron.
Encounter Dorikos.
Encounter Erdu.
Encounter Herskil.
Encounter Ul-Dagan.
Summon over 50 skeletons or zombies in a battle for the shard.
Forge an alliance with the dwarves.
Encounter L'Anshar.
Conquer a shard after winning 10 fights on the Arena.
Forge an alliance with the orcs.
Forge an alliance with the goblins.
Encounter Stenriya.
Forge an alliance with the centaurs.
Encounter Oumm.
Conquer a shard after plundering over 1000 gold from the provinces.
Forge an alliance with the elves.
Construct all possible buildings in the stronghold.
Forge an alliance with the halflings.
Receive medal with a unit.
Encounter Vianta.
Fight off an attack by another Master against your shard.
Conquer a shard after looting 10 locations with dragon guards.
Conquer a shard after exploring over 1000% of uncharted land across the provinces.
Encounter Doh-Gor.
Forge an alliance with the lizardmen.
Survive with a hero the annihilation of his army.
Conquer a shard after gathering at least one set of 4 or more items.
Explore a province to 100%.
Encounter Beleth.
Destroy the guards of a store in province.
Reach 20th hero level.
Slay a dragon.
Lose a battle for the shard due to an uprising in your capital province.
Conquer a shard after unveiling the entire map.
Reach 10th hero level.
Capture over 50% of provinces on a shard.
Resurrect a slain hero.
Encounter Oinor.
Conquer a shard without losing any units serving in the heroes' armies.
Capture your first shard.
Capture a shard in less than 45 turns.
Conquer a shard without losing any battles involving the heroes.
Conquer a shard after constructing all available buildings in the stronghold.
Begin your first siege.
Conquer your first province.
Earn first hero level.
Win your first tactical battle.
Talk to Zarr in the Astral.