Here is the full list of all 44 SteamWorld Quest: Hand of Gilgamech achievements.
Defeat a certain boss before it can use Hell's Tokamak.
Complete the Midas Grand Prix.
Deal 20,000 or more damage with a single hit.
Complete the Abyssal Cup.
Defeat Mechathiranos.
Defeat the Dark Lord.
Raise a hero's Strength bonus to +7 grades or more.
Inflict Burn, Bleed, Poison and Despair on the same enemy.
Have 12 instances of negative status conditions affecting foes at the same time.
Deal a total of 100,000 Arcane damage.
Perform 100 Tag Team Combos.
Loot all treasure chests.
Deal a total of 100,000 Frost damage.
Craft every punch card available at the mysterious merchant's.
Deal a total of 100,000 Storm damage.
Evade attacks 50 times.
Defeat the Teras Koloss.
Heal a total of 50,000 points of health.
Deal a total of 100,000 Fire damage.
Play six cards from your hand in one turn.
Heal a hero from less than 5% health to full with a single card.
Break 250 world objects.
Complete the Coglin Cup.
Spend 10,000 gold.
Deal a total of 100,000 Physical damage.
Spend 10 Steam Pressure on a single card.
Defeat Headmistress Hyapathia.
Recruit Tarah & Thayne.
Fully upgrade a punch card.
Upgrade a punch card.
Defeat Captain Canary and the Narcassian Dragon.
Hit innate elemental weaknesses 100 times.
Recruit Orik.
Perform 100 Heroic Chains.
Redraw cards 100 times.
Loot 10 treasure chests.
Buy an item from the traveling merchant.
Craft a punch card.
Recruit Galleo.
Scrap three enemies with a single card.
Find a secret room.
Change a hero's deck.
Defeat Gomphus.
Use a recovery item in battle.