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