XBill is an arcade style game for the X Window System. The game features a bespectacled character known as "Bill" (a spoof of Bill Gates). The goal is to prevent Bill's legions of clones from installing "Wingdows", a virus "cleverly designed to resemble a popular operating system" (a parody of Windows), on a variety of computers running other operating systems. It was very popular among Linux gamers at the end of the 1990s, beating out Quake, though not Quake II, as Linux Journal reader's favourite Linux game in 1999.
Gameplay
The operating systems are represented by logos shown on the computer screens. The computers the player must defend include PCs running Linux and BSD, SPARCstations with Solaris, SGI IRIX workstations, Apple Macintosh, PalmPilots, and NeXTcubes. When Bill installs Wingdows onto a computer, its current operating system is placed beside it.
Using the mouse, the player must squash Bill and drag discarded operating systems back to their computers. At the end of the level, points are accrued for every computer that is still running its original operating system.
On later...