Here is the full list of all 21 CHKN achievements.
50 Trees Cut Down
Crafted a tool
Increase the Life Shaper's Build Limit
Used a whistle
Cooked some food
Created a creature
Kill 10 Creatures with a Slingshot
3 Creatures Bred
10 Creatures Tamed
Set Something on Fire
Slept in bed
10 Creatures Killed
Crafted a torch
Rode a creature
Broke an egg
Cut down a tree
Tamed a creature
You know how to eat.
Fed a creature
10 Creatures Created
10 Rocks Broken