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