Here is the full list of all 37 Soft cookie achievements.
Eat a cookie 1 time
Eat a cookie 2 time
Eat a cookie 3 time
Eat a cookie 4 time
Eat a cookie 5 time
Eat a cookie 6 time
Eat a cookie 7 time
Eat a cookie 8 time
Eat a cookie 10 time
Eat a cookie 20 time
Eat a cookie 30 time
Eat a cookie 40 time
Eat a cookie 50 time
Eat a cookie 100 time
Win 1 time
Win 2 time
Win 3 time
Win 4 time
Win 5 time
Win 6 time
Win 7 time
Win 8 time
Win 10 time
Win 20 time
Win 30 time
Win 40 time
Win 50 time
Win 100 time
Win a battle at level 1 complexity
Win a battle at level 2 complexity
Win a battle at level 3 complexity
Win a battle at level 4 complexity
Win a battle at level 5 complexity
Win a battle at level 6 complexity
Win a battle at level 7 complexity
Win a battle at level 8 complexity
Stay in the game for 3 hours