OpenSC2K - An Open Source remake of Sim City 2000 by Maxis
KotCity, an open source city simulator
Documentation related to the implementation of Maxis' game, SimCity 2000.
FreeBSD port of Micropolis
Unity version of Micropolis rewritten from the ground up
A Micropolis (Simcity classic) inspired city building game written in C#
A SimCity BuildIt Bot
Open source re-implementation of SC2k.