Install crossfire-maps by entering the following commands in the terminal:
sudo apt update sudo apt install crossfire-maps
Description:
Standard set of maps for crossfire
Maps for use with crossfire-server or crossfire-edit. . You don't need this package if you are running only the client. . Note that installing maps will restart crossfire-server, if it is installed and running.
Homepage: http://crossfire.real-time.com/
Version: 1.71.0-1
Section: universe/games