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