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