Lincity

Lincity is a free and open-source software construction and management simulation game, which puts the player in control of managing a city's socio-economy, similar in concept to SimCity. The player can develop a city by buying appropriate buildings, services and infrastructure.

Its name is both a Linux reference and a play on the title of the original city-building game, SimCity, and it was released under the GNU General Public License v2.