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