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