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