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