Here is the full list of all 23 Ravenous Devils achievements. It takes around 5-6 hours to unlock all of the achievements on Windows.
Produce sausages 20 times
Who is the real devil in the end?
Act like a good parent
Make a new dress for Yvonne
Buy a new outfit (it's not for Vicky this time)
Produce steaks 20 times
Buy all tables. Now you're not just doing takeaway, you have a real restaurant!
Get all the upgrades. Mr. T would be proud
Find out where Elisewin is gone
You didn't use your scissors today. It was boring, wasn't it?
Play with the sign 10 times
Help Gilbert
Learn all your grandma's recipes
Open the shop with the displays and the mannequins full
Do you like black humour? No? You'll like it, trust me
Fertilise the unusual plant in the greenhouse and make it sprout up
Buy a warm couch for your cat
Anyone else?: Use your scissors 50 times on your clients
Hire an attendant
Produce minced meat 20 times
So, you got into gardening
Take Elliot's measurements
Receive the first letter