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