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