This wiki was in read-only mode for many years, but can now be edited again. A lot of information will need to be updated.
Installing on Linux
This is how to install. To compile, see Compiling.
Installing from tarball
You extract it and run the install script as root.
Installing using a package manager
This depends on your distribution. But for example:
$ sudo rpm -ivh bzflag.x86.208.rpm
Fedora / Red Hat / Mandriva / SUSE
$ sudo yum install bzflag
Gentoo
# emerge bzflag
Alternatively, if you want to grab the 2.0 subversion branch (you probably shouldn't worry about this unless you need a bug fix that you know is not in the latest release), there is an ebuild available to do this at http://succexy.com/~chris/overlay/games-action/bzflag/bzflag-9999.ebuild. See the Gentoo Wiki for more information on using third-party ebuilds.
Ubuntu / Debian
$ sudo apt-get install bzflag