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