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