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