Full list of all 27 Necesse achievements.
The base game contains 11 achievements, and there are 2 DLC packs containing 16 achievements.
Defeat your first boss
Enchant an item using the mage
Visit all different biomes
Get your first pet
Change your spawn point
Start a settlement
Be careful to not get lost!
Obtain all possible items
Fish up a total of 500 items
Run a full marathon on foot
Play the game for a full 24 hours
Complete a settlement quest tier
Increase max trinket slots
Have an inventory full of different items
Wear a gold crown
Catch 2 fish in 1 throw
Have all possible settlers live in the same settlement
Reach the deep caves
Equip your first trinket ability
Recruit your first settler
Listen to a vinyl on the music player
Have a settler reach 100% happiness
Kill a Zombie in a single hit
Kill a boss in less than 30 seconds
Defeat the Fallen Wizard
Defeat the Pirate Captain
Find and dig up a gravestone