For Windows users:

1. Extract "prawrtect-the-city-windows.zip";
2. Enter directory "prawrtect-the-city-windows";
3. Run "app.exe".

For Linux users (more guaranteed to work):

1. Extract "prawrtect-the-city-linux.zip";
2. Enter directory "prawrtect-the-city-linux";
3. Run "prawrtect-linux" (command: ./prawrtect-linux).