Lincity

Lincity is a computer game, originally for Linux, but also running on Microsoft Windows, BeOS, and OS/2, as well as a huge variaty of UNIX-styled systems. It is an open source clone of the original Sim City from 1989, and features complex, 2D, top-down gameplay. It was last updated in August 2004, although any chance since circa 1999 have been relatively minor. It uses SVGALib or X11 as its graphics interface API on UNIX systems, with a variaty of native versions on non-UNIX platforms.

A fork of the game, Lincity-NG, uses SDL and OpenGL, and has a 3D gameplay engine more similar to that in SimCity 3000. It again runs on Linux as its primary platform, with Windows, Mac OS X, BeOS, and UNIX systems also supported. A Windows binary + gamefiles download of Lincity-NG is around 40MiB, compared to 800KiB for original LinCity, mainly representing far newer in game graphics and sound.