Here is the full list of all 82 Heroes of a Broken Land achievements.
Lots of Mines cleared
Ally with a Lizard town
Lots of Caves cleared
Lots of Labyrinths cleared
Hunt down hordes of wandering monsters
Many Towers traversed
Train an master of death and poison
They're more afraid of you than you are of them.
Train the finest warrior
Cleared a multy-party dungeon
Many Labyrinths cleared
Many Crypts cleared
Hunt down lots of wandering monsters
Many Dungeons cleared
Who you gonna call? You!
Train a master of the elements
Many Mines cleared
So many Bats bashed. Poor Bats...
They're endangered now, good job.
Hunt down wandering monsters
Train a holy bishop
Bones to Dust
Zombies are actually quite friendly, have you tried talking first?
Train a master of magic
Caves cleared
You've mastered the art of killing vermin
Recover the heart of a Tiny world
Purify the Crystal Heart
Snakes, why does it always have to be snakes!
Revealed and cleared the Forge
Mastered the elimination of Elementals
Slimes fear your squishing powers now
You're some kind of Ghost Smasher!
Destroy the Lord of Fire
Destroy the Lord of Ice
Bats have been bashed expertly
Aren't bears endangered?
Destroy the Lord of Earth
Train a protector of the weak
Destroy the Lord of Air
Earned expertise eliminating Elementals
Conquer the Pillar of Fire
Smash, Smash, Smash!
Conquer the Pillar of Water
Seriously, who's making all these zombies?
Many Slimes have been squashed
Slay those snakes!
You're an expert at killing vermin
Conquer the Pillar of Air
Ghost Buster!
Conquer the Pillar of Earth
Elementary Elemental elimination
Bats have been bashed
Slimes have been squashed
Bludeon those bears
Ally with an Outpost town
Heroes 1, Zombies 0
Smash them bones
You've destroyed many rats
Ashes to ashes, dust to dust
Destroy the Queen Slime
Defeat Mr. Wiggles
Master at clearing Caves
Lots of Dungeons cleared
Master at clearing Dungeons
Master of Mining
Lots of Crypts cleared
Master of clearing Crypts
Master of clearing Labyrinths
Lots of Towers traversed
Master of traversing Towers
Recover the heart of a Small world
Recover the heart of a Normal world
Recover the heart of a Large world
Recover the heart of a Huge world
Recover the heart of a Enormous world
Ally with a Fae town
Ally with an Artificer town
Train a jack-of-all-trades adventurer
Train a dedicated monk
Custom order heros
Clear a dungeon solo