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