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