At face value this looks like a pretty harmless app/game called Cunch-Line Chronicles. It is far from innocent. The game promotes and sensationalises the county lines lifestyle, teaches users how to set up a trap house and recruit runners. Croydon Council have stated that it is popular with young people in their area. As it is an app, it is likely to spread quickly.
See attached images from the app and example messages from those involved.
Please share as appropriate, particularly with staff/organisations who may be working with individuals who might become victims of county lines through being drawn in by gangs using/playing this app.
If you identify an issue in your area, please report to your local police force.