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