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.
Construct all possible buildings in the stronghold.
Begin your first siege.
Capture your first shard.
Capture over 50% of provinces on a shard.
Encounter Doh-Gor.
Encounter Oumm.
Encounter L'Anshar.
Encounter Ul-Dagan.
Encounter Adrageron.
Reach 10th hero level.
Lose the campaign to Chaos invasion.
Forge an alliance with the elves.
Forge an alliance with the centaurs.
Encounter Herskil.
Conquer a shard without losing any units serving in the heroes' armies.
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.
Conquer a shard after exploring over 1000% of uncharted land across the provinces.
Slay a dragon.
Encounter Magnus.
Encounter the Nameless.
Encounter Ranadil.
Encounter Dorikos.
Encounter Erdu.
Encounter Dariol.
Encounter Stenriya.
Forge an alliance with the orcs.
Forge an alliance with the lizardmen.
Encounter Vianta.
Fight off an attack by another Master against your shard.
Lose a battle for the shard due to an uprising in your capital province.
Capture a shard in less than 45 turns.
Reach 20th hero level.
Forge an alliance with the halflings.
Encounter Beleth.
Resurrect a slain hero.
Encounter Oinor.
Explore a province to 100%.
Receive medal with a unit.
Earn first hero level.
Conquer your first province.
Win your first tactical battle.
Survive with a hero the annihilation of his army.
Talk to Zarr in the Astral.
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 goblins.
Destroy the guards of a store in province.
Summon over 50 skeletons or zombies in a battle for the shard.
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.