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