XPilot

XPilot
Screen capture of XPilot NG running under fvwm on Linux
Developer(s)	Various
Platform(s)	Unix-like, Windows, Mac OS, iOS
Release	1992
Genre(s)	Multiplayer online game, Multidirectional shooter
Mode(s)	Multiplayer

XPilot is a multiplayer video game. It is open source and runs on many platforms. Although its 2D graphics have improved over time, they still resemble the style of Thrust. Gameplay includes Capture the Flag, base defense, racing and deathmatches. XPilot uses a client–server architecture, in which a central metaserver receives information from all XPilot servers on the Internet.

In 1991, Bjørn Stabell and Ken Schouten, then computer science undergraduates at the University of Tromsø, began writing XPilot, inspired by the earlier game Thrust. It was originally developed in C on HP9000 workstations which ran Unix. Soon after its first public release in 1992, Stabell and Schouten began receiving feedback, suggestions, and patches from players all around the world. Other XPilot users wrote documentation and contributed source code to the project. By 1996, there were nearly one hundred XPilot servers worldwide.

XPilot's code has been forked several times. XPilot5 is a complete rewrite of XPilot in C++. Unlike its predecessor, it comes with sound and is bundled with applications to configure the keyboard, ship shapes and behavior. The latest stable version of XPilot5 is 5.0.0. In late 2000, another group of developers began a branch of XPilot, later labeled XPilot NG (for next generation). Programmed in C, it contains two clients, either X11-based or SDL/OpenGL-based. Unlike the block-based maps of the original game, XPilot NG provides high frame rates and polygon maps. A new Java based map editor provides better map editing facilities. The latest version of XPilot NG is 4.7.2. In 2009, 7b5 Labs released XPilot iPhone, an XPilot client for Apple's iPhone and iPod touch. It is based on XPilot and XPilot NG and uses touchscreen controls. While these modern versions implement many new features, they are mostly compatible with the original program.