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