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