The Sims 4's Businesses & Hobbies expansion pack allows Sims to open their own business and pursue hobbies such as tattooing, pottery, and running a cat café.
The expansion pack introduces new mechanics, including the ability to set pricing, hire staff, and design custom tattoos.
There is a mentorship system that allows Sims to learn from experts in the field to improve their skills.
The expansion pack also adds new cities, including a city with a Northern European influence.