SimCity for Unix was originally released as a commercial product from DUX Software for OpenWindows/NeWS/HyperLook in 1992: https://www.donhopkins.com/home/cata

SimCity for Unix was originally released as a commercial product from DUX Software for OpenWindows/NeWS/HyperLook in 1992: https://www.donhopkins.com/home/catalog/simcity/simcity-review.html https://www.donhopkins.com/home/catalog/simcity/simcity-revi... Then later DUX Software released a collaborative multi player version of SimCity for X11/TCL/Tk in 1993: https://www.donhopkins.com/home/catalog/simcity/simcity-announcement.html https://www.donhopkins.com/home/catalog/simcity/simcity-anno... https://groups.google.com/g/comp.newprod/c/5KWv25ckYHc/m/MgGQlPy-GTYJ https://groups.google.com/g/comp.newprod/c/5KWv25ckYHc/m/MgG... Then it was finally re-licensed under GPL-3 for the OLPC as SimCity, and for any other use as Micropolis in 2008 (with the multi player stuff disabled because the X11 network protocol was not safe or simple enough for kids to use on a mesh network): https://arstechnica.com/gaming/2008/01/simcity-goes-open-source-as-micropolis/ https://arstechnica.com/gaming/2008/01/simcity-goes-open-sou... https://github.com/SimHacker/micropolis https://github.com/SimHacker/micropolis