Here is the full list of all 55 Pixel Heroes: Byte & Magic achievements.
Finish an adventure with an all-Skyborn party.
Lead all citizens to maximum happiness.
Finish an adventure with Enchantress, Shadowmancer and Skyweaver.
Lose 50 times.
Finish an adventure with Herbalist, Priest and Brewmaster.
Play at least once with each hero class.
Finish the final campaign without a hero dying.
Defeat the boss of the Gates of Ashtur.
Unlock all hero classes.
Help Sapphire on her path to self-fulfillment.
Escape the red flyswarm 4 times.
Finish an adventure with an all-Dwarf party.
Defeat the boss of the Randoom Meteorite.
Help Jindid on his path to self-fulfillment.
Help Mustachio on his path to self-fulfillment.
Finish a complete adventure without dying once.
Reach 500 HP with one hero.
Solve all four riddles of the enigmatic idols.
Lose 10 times.
Finish an adventure with Fighter, Barbarian and Warrioress.
Help Captain Capslock on his path to self-fulfillment.
Defeat the boss of The Boneyard.
Defeat the boss of the Goblin Outpost.
Enter a bossfight with a single alive hero and be victorious.
Help Shroom on his path to self-fulfillment.
Defeat an enemy only with the fist.
Finish an adventure with an all-Human party.
Defeat the boss of the Cyclopean Pyramid.
Uncover the dark secret of the casino owner.
Listen to Layment, the travelling musicians.
Defeat the boss of the DevilsReef.
Revive 3 fallen heroes during one adventure.
Finish 6 dungeons during one adventure.
Defeat the boss of the Haunted Mansion.
Unlock a treasure chest with no more than 20% chance.
Defeat the inscrutable flying polyp.
Use 50 potions during one adventure.
Drink 100 glasses of beer during one adventure.
Defeat the boss of the Stormy Peaks.
Enter a bossfight with two alive heroes and be victorious.
Survive through 3 dungeons in a row.
Defeat the boss of the Byting Woods.
Listen to all stories of the barkeeper.
Defeat the captor of souls himself.
Defeat the boss of the Ancient Temple.
Defeat three enemies with one hit.
Defeat the boss of the Sunken Empire.
Defeat the boss of Old Volcano.
Evade an attack by the use of Concealed.
Lose all your heroes for the first time.
Finish your first quest.
Defeat the boss of the Arcane Armory.
Defeat your first enemy.
Lose 100 times.
Finish an adventure with each hero class.