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