OLPC SimCity will be shipped with the OLPC, and it has been run through EA's quality assurance process and reviewed for integrity. Don Hopkins adapted SimCity to the OLPC, thanks to the support of John Gilmore. SimCity is a trademark of Electronic Arts. OLPC SimCity is based on the TCL/Tk version of SimCity.

The contract to sell SimCity for Unix expired after ten years, so the TCL/Tk version was no longer commercially available. The TCL/Tk version of SimCity has been ported to various Unix and non-Unix platforms, including SunOS, Solaris, Irix, HP/UX, OSF/1, Quarterdeck Desqview/X, NDC X Terminals, Warp, and Linux. After Sun canceled NeWS, DUX Software contracted me to rewrite the HyperLook user interface in TCL/Tk for X11, and I developed a multi-player networked user interface using the X11 protocol.The user interface was written in PostScript, which ran on the NeWS window system on Sun workstations, and it supported multiple zoomable views, pie menus, annotating and printing maps, and many user interface improvements. DUX Software contracted me (Don Hopkins) to port SimCity to Unix, and I developed 'SimCity HyperLook Edition', while working at the Turing Institute on HyperLook with Arthur van Hoff.Maxis licensed the Macintosh SimCity source code to DUX software, to port to Unix. The original version of SimCity was developed by Maxis on the C64, and ported to various platforms, including the Macintosh.

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