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