Empire of Sin is a new strategy game brought to you by Romero Games and Paradox Interactive that puts you at the heart of the ruthless criminal underworld of 1920s Prohibition-era Chicago. Slip into the shoes of one of the fourteen real and historically inspired mob bosses such as Al Capone, Stephanie St. Clair, or Goldie Garneau and assemble a rag-tag gang, build and manage your criminal empire, and defend your turf from rival gangs. It’s up to you to hustle, charm, and intimidate your way to the top and do whatever it takes to stay there - break a leg!

Roleplay: Choose one of fourteen unique bosses based on fictional and real-world gangsters, then set out to build and manage your criminal empire in Chicago’s infamous Prohibition era.

Empire Management: Build your Empire of Sin and run Chicago’s underworld economy with business savvy, brutality or city-wide notoriety. Strategically manage your establishments such as speakeasies, supply chains, casinos and more.

Turn-Based Combat: Assemble your gang and slug it out in turn-based combat to defend and expand your territory – or send a message to opposing gangs.

Mature Content Description

The developers describe the content like this:

Contains moderate violence and mature themes.
System Requirements
Windows
Mac OS X

Minimum:
OS: Windows® 8.1 64 bit or Windows® 10 Home 64 bit
Processor: Intel® Core™ i3-530 or AMD® Phenom™ II X3 720
Memory: 4 GB RAM
Graphics: Nvidia® GeForce™ GTX 460 (1GB) or AMD® Radeon™ R7 250 (2GB), AMD® Radeon™ Vega 11
DirectX: Version 11
Storage: 10 GB available space

Recommended:
OS: Windows® 10 Home 64 bit
Processor: Intel® Core™ i5-4460 or AMD® Ryzen™ 5 3400G
Memory: 8 GB RAM
Graphics: Nvidia® GeForce™ GTX 770 (2GB) or AMD® Radeon™ RX 470 (4GB)
DirectX: Version 11
Storage: 10 GB available space

https://store.steampowered.com/app/604540/Empire_of_Sin/