Here is the full list of all 34 SteamWorld Dig 2 achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Hit 15 flyers with your Hook Shot.
Finish the game with a gold star in the Secrets category.
Travel a distance of 100 tiles horizontally without touching the controls.
Do not trigger the alarm in Vectron more than twice.
Collect 42 artifacts.
Find all missing Yonker brothers.
Buy all upgrades available at the workbench.
Finish the game with a gold star in the Wealth category. Get filthy rich!
Leave the Earth with your companion in tow.
Upgrade your armor to the highest level possible.
Upgrade your lamp to the highest level possible.
Sell $10,000 worth of resources.
Kill an enemy with its own projectile.
Reach experience level 14.
Complete 20 challenge caves.
Collect 25 artifacts.
Upgrade your backpack to the highest level possible.
Escape the grasp of Vectron.
Upgrade your pickaxe to the highest level possible.
Kill two enemies with one crushing rock.
Sell $2,500 worth of resources.
Defeat the Great Prophet.
Collect 10 artifacts.
Collect 10 Silver ore resources.
Complete 5 caves.
Discover the last refuge of a fallen civilization, The Oasis.
Enter Yarrow and discover a strangely verdant area.
Defeat the first boss.
Finish the game with a gold star in the Time category. How fast is that, exactly? It’s up to you to find out!
Finish the game with a gold star in the Deaths category. You can’t even die once, buddy!
Finish the game with a gold star in every category.
Collect 15 resources with your Hook Shot.
Destroy all devices without entering Vectron.
Survive the Ultimate Trial.