Unix

Technical specifications

 * See also: History of Unix

Unix systems are descendants of or clones of the original AT&T Unix. Unix systems have been ported to many kinds of hardware, including x86 and Macintosh. Most Unix variants have the same games available.

There are many variants of Unix, including:
 * GNU/Linux (Linux distros like Fedora Core, Gentoo, Ubuntu, ...)
 * *BSD (FreeBSD, NetBSD, OpenBSD, ...)
 * Mac OS X, which also runs Apple Macintosh games
 * UNIX System V variants (HP-UX, Solaris, IRIX)
 * AIX from IBM
 * others - see A Neutral Look at Operating Systems/Unix

There are several types of games available:
 * Terminal games run on the console or an X11 terminal emulator such as xterm. Text adventures like Adventure describe the world in text, and accept text commands. The roguelike games draw themselves in ASCII art.
 * X11 games use the X Window System, Version 11 to display. Most Unix come with XFree86 or XOrg. Some X11 games use the cross-platform Simple DirectMedia Layer (SDL) library, and some use OpenGL 3D graphics.
 * Wine games : Wine is an open-source win32 subsystem(that is not an emulator) that allow *nix users to play some windows games(as it is not an emulator Only x86 and similar(X86-64...) are able to use it because windows games are in binary form)
 * Cedega games : Cedega is a more complete win32 subsystem for games

if we forget about commercial games,a lot of unixes open-source games are also available for windows,or others os

Game list

 * Adventure
 * Battle for Wesnoth
 * Battles of Antargis
 * DooM 3
 * Neverwinter Nights
 * Second Life
 * Freeciv
 * Glest
 * Hack
 * NetHack
 * Nexuiz
 * Rogue
 * Slash'EM
 * SuperTux
 * Tremulous
 * XPilot