Here is the full list of all 54 Ylands achievements.
The base game contains 46 achievements, and there are 3 DLC packs containing 8 achievements.
Complete the "Lost Light" Mystery Yland
Complete the "Jagged Jaw" Mystery Yland
Complete the "Forest Spirits" Mystery Yland
Complete the "Distress Signal" Mystery Yland
Complete the "Ember Yland" Mystery Yland
Complete the "Distant Memory" Mystery Yland
Complete the "Far Reaches" Mystery Yland
Complete the "Imaginarium" Mystery Yland
Complete 5 Mystery Ylands
Collect 100 exploration points
Collect 200 exploration points
Collect 500 exploration points
Sail to 10 Ylands
Sail to 50 Ylands
Sail to 100 Ylands
Visit 5 different biomes
Find all the pieces of Mk. I Armor
Visit 100 unique encounters
Learn 100 new recipes from random encounters
Claim your first ship
Assemble your first car
Cook 20 different meals in a workstation
Craft an energy generator
Place 1000 building blocks
Place 5000 building blocks
Place 10000 building blocks
Place a Vendor Banner
Craft a Propeller Pack
Complete your first blueprint
Kill 100 mutated enemies
Kill 500 mutated enemies
Kill 1000 mutated enemies
Kill an enemy that's further than 50 meters with a ranged weapon
Blow yourself up with your own grenade
Kill an enemy with the crowbar
Tame 10 animals
Tame 20 animals
Tame 50 animals
Tame 10 types of animal
Read a book
Craft 10 types of potions
Plant 10 types of plant
Plant 100 plants
Plant 500 plants
Plant 1000 plants
Complete Ylands tutorial
Tame 10 mythical animals
Tame 20 mythical animals
Tame 30 mythical animals
Get an item from a friend
Send an item to a friend
Collect all the stolen toys
Tame all the escaped draft animals
Hit others with snowballs