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