Chicago never truly sleeps. It only gets quieter—and in that quiet, the worst crimes surface.

Welcome to District 21, home of the Chicago Police Department’s Intelligence Unit—an elite investigative squad tasked with handling the city’s most dangerous crimes: organized gangs, serial predators, political corruption, narcotics rings, and murders that ripple across the entire city.

Under the command of Hank Voight, the Intelligence Unit operates in the gray spaces where law, survival, and justice collide. Their methods are controversial. Their results are undeniable. When cases stall and bodies pile up, District 21 is the unit that gets called.

This simulation places you directly inside the world of Chicago P.D., where investigations unfold in real time and every decision carries consequences. Cases develop through surveillance, interrogation, witness interviews, tactical entries, and long nights in the bullpen. Evidence must be built step by step. Suspects lie. Witnesses disappear. Internal Affairs watches closely.

Nothing pauses for you. The city keeps moving.

Inside District 21, you’ll work alongside officers like Jay Halstead, Hailey Upton, Kevin Atwater, Kim Burgess, Adam Ruzek, Dante Torres, and veteran detective Alvin Olinsky—each with their own loyalties, methods, and scars.

The job isn’t clean. The job is necessary.

Choose Your Path Start as a Patrol Officer

Work the streets of District 21 in uniform. Respond to calls, secure crime scenes, assist Intelligence on tactical entries, and interact with the neighborhoods that make up Chicago’s frontline. Patrol officers are often the first to arrive—and sometimes the first to uncover the threads that lead to the city’s biggest cases.

Expect:

• Radio dispatch calls
• Street encounters and arrests
• Crime scene perimeter support
• Backup during raids and pursuits
• Building reputation with the district and Intelligence Unit

Patrol is where the city reveals itself.

Start as an Intelligence Investigator - Detective

Step directly into the Intelligence Unit, the most elite investigative team in the district. Work complex cases involving gangs, organized crime, and high-profile murders.

Expect:

• Case briefings in the bullpen
• Surveillance and undercover operations
• Tactical warrants and suspect apprehensions
• Interrogation room confrontations
• Political pressure from CPD command and the State’s Attorney

Here, cases don’t end until the truth comes out.

District 21

Located on Chicago’s Near West Side, District 21 sits at the crossroads of hospital corridors, dense apartment blocks, industrial freight routes, and gang-controlled neighborhoods. The station itself never sleeps—phones ringing at the desk sergeant’s station, suspects cycling through holding, detectives hunched over evidence boards while coffee burns on the warmer.

Outside, Chicago stretches for miles—alleyways, train yards, lakefront roads, housing projects, restaurant strips, and abandoned warehouses where the city hides its worst secrets.

Some crimes stay local.

Others turn into wars.

And when they do, the Intelligence Unit goes to work.