ggz − The GGZ Gaming Zone


The GGZ Gaming Zone is a standards-conforming online gaming infrastructure which provides many applications and games to people who like to play on the internet or in local networks. GGZ, how the (recursive) acronym is called, is available for many computer systems. This document focuses on the installations on Linux, BSD and Unix.


There isn’t a single executable named ggz, instead a multitude of programs is available to the user, and even more which operate on the system level or are used by developers and administrators. Users will most likely want to connect to a GGZ server on the internet, such as ggz://, to play games against other people. Core clients are used to perform this task. Functional clients exist in the form of kggz for the K Desktop Environment (KDE), ggz-gnome and ggz-gtk for GNOME or XFCE users, and ggz-txt for people who prefer command-line applications. Of course, the clients are not bound to a specific desktop, but the choices above will likely be influenced by the level of integration. A client under development is the SDL-based vÃbora.

Special clients exist in the form of ggzap, a quick-launcher for the KDE panel, and ggz-wrapper which is used for launching GGZ games from instant messenger applications.


Games are usually launched by the GGZ server, with corresponding game clients running on the user’s desktop. Plenty of games are available for GGZ, most of them coming from the GGZ project itself but several independent game projects do now provide GGZ support. Game clients are implemented using multiple toolkits, some of which stem from certain desktop environments. However, all games work equally well under all desktops, it’s just a matter of personal choice which of them are to be installed - having all of them is just fine.

While some GGZ game clients are suited for online gaming only, others also run locally like normal games happen to do. Those will be found in the desktop’s application menu.


The following layout can vary from site to site, depending on the completeness of a GGZ installation and the operating system distribution in use. It adheres to the File Hierarchy Standard (FHS) as much as possible.

GGZ applications, tools, and the games which provide single player mode.


GGZ game clients and servers.


Data files for game clients and servers.


Game module registry for game clients.


Configuration for the GGZ server, including rooms and game types.


GGZ Design Document and Protocol Reference, available at

GGZ Client-Client Protocol Reference, available at

GGZ Server-Server Protocol Reference, available at specifications for desktop integration of games and applications, more information at

File Hierarchy Standard for unix-derived operating systems, at


The GGZ Development Team <ggz−>


kggz(6), ggz-gtk(6), ggz-txt(6), ggz-java(6)

More Linux Commands

XtSetArg(3) - set and merge ArgLists - Linux manual page....
The XtSetArg function is usually used in a highly stylized manner to minimize the probability of making a mistake; for example: Arg args[20]; int n; n = 0; XtSe

Mail::SPF::Term(3pm) - SPF record term class (Man Page).....
An object of class Mail::SPF::Term represents a term within an SPF record. Mail::SPF::Term cannot be instantiated directly. Create an instance of a concrete sub

Xutf8TextListToTextProperty(3) - convert text lists and text
The XmbTextListToTextProperty, XwcTextListToTextProperty and Xutf8TextListToTextProperty functions set the specified XTextProperty value to a set of null-separa

slk_label_sp(3ncurses) - curses screen-pointer extension....
This implementation can be configured to provide a set of functions which improve the ability to manage multiple screens. This feature can be added to any of th

XSetWindowBackground(3) - change window attributes (ManPage)
Depending on the valuemask, the XChangeWindowAttributes function uses the window attributes in the XSetWindowAttributes structure to change the specified window

foomatic-rip(1) - Universal print filter/RIP wrapper........
foomatic-rip is a universal print filter which can be used as CUPS filter or stand-alone for spooler-less, direct printing. It has the following features: It tr

tk_optionMenu(n) - Create an option menubutton and its menu
This procedure creates an option menubutton whose name is pathName, plus an associated menu. Together they allow the user to select one of the values given by t

Tk_GetVRootGeometry(3) - Get location and size of virtual ro
Tk_GetVRootGeometry returns geometry information about the virtual root window associated with tkwin. The associated virtual root is the one in which tkwins nea

systemd.snapshot(5) - systemd snapshot units (Man Page).....
Snapshot units are not configured via unit configuration files. Nonetheless they are named similar to filenames. A unit whose name ends in .snapshot refers to a

unwrapdiff(1) - demangle word-wrapped patches (Man Page)....
unwrapdiff demangles patches that have been word-wrapped, in an attempt to make them useful. The corrected diff is sent to standard output. Note that you will p

getsid(2) - get session ID (System calls - Linux man page)
getsid(0) returns the session ID of the calling process. getsid(p) returns the session ID of the process with process ID p. (The session ID of a process is the

gnutls_x509_crt_set_crl_dist_points2(3) - API function......
gnutls_x509_crt_set_crl_dist_points2.3 - This function will set the CRL distribution points certificate extension. RETURNS On success, GNUTLS_E_SUCCESS (0) is r

We can't live, work or learn in freedom unless the software we use is free.