Full list of all 36 Stacklands achievements. It takes around 4-5 hours to unlock all of the achievements in the base game on Windows.
The base game contains 16 achievements, and there is 1 DLC pack containing 20 achievements.
Kill the Final Boss
Kill a Skeleton
Find a mysterious artifact
Have 50 Gold
Kill a Rat
Cook a Frittata
Sell a Card at the Market
Reach Moon 24
Unlock all Packs
Buy something from a Travelling Cart
Create Offspring
Build a House
Get a Second Villager
Sell a Card
Pick a Berry Bush
Get a Dog
Find Treasure
Build a Greenhouse
Build a Sloop
Get a Villager drunk
Catch a Fish
Build a Smithy
Find the Dark Forest
Have a Villager with Combat Level 20
Unlock all Island Packs
Build a Rowboat
Kill the Kraken
Kill the Final Final Boss
Make Rum
Befriend a Pirate
Make Ceviche
Build a Stable Portal
Fight Wave Six
Fight the Wicked Witch
Train an Archer
Make a Villager wear a Rabbit Hat