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