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