The Network Addon Mod, or NAM, is a modification for SimCity 4 Deluxe (or SimCity 4 with the Rush Hour Expansion pack), which adds a myriad of new transport network items, ranging from ground light rail, to fractional-angle roads, to roundabouts, and much more. It also includes bugfixes to Maxis items and a highly optimized set of traffic simulator plugins, improving pathfinding accuracy and performance.

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4 comments by TarkusSC4 on Jul 28th, 2014

The changes included in NAM 32.1 are specific to ensuring compatibility with the 2014 Aspyr re-release of the Mac OS X port of SimCity 4 Deluxe, on the Mac App Store and Steam, as well as the older disc version with the Universal Binary patch on Mac OS X Lion (10.7) or later.

  • Exemplar encoding has been fixed, effectively solving the crash-to-desktop (CTD) issues that have existed on the Mac port since Apple's removal of Rosetta in OS X Lion (10.7).
  • Adds transit network paths that were missing in the Aspyr release.
  • Includes an installer for the first time.

NAM 32.1 is a Mac-only release, and all the changes to the package are aimed at ensuring compatibility with the Aspyr port. No other features have been added, making a NAM 32.1 release unnecessary for Windows.

In order to open the NAM for Mac installer, you will need to acquire a file decompression tool capable of handling 7-zip (.7z) files, such as Keka or The UnArchiver. We have used 7-zip because of its use of LZMA compression, allowing the file to be hundreds of megabytes smaller. The package contains a "READ FIRST" .txt file that will further instruct you as to installation.

A few other items of note:

  • As the installer package is basically the Windows installer running in a Wineskin wrapper, it is unable to detect Java, and by default, cannot run the Controller Compiler. You will encounter a pop-up dialog box informing you of this while the files are installing. The installer is designed to install the full NAM Controller as a failsafe. Testing results have shown that the full controller has much less of a performance impact on the Aspyr port than on the Windows version, but if you would like to run the compiler, it is possible to do so manually. The "READ FIRST" document details this information.
  • The Aspyr re-release is known to have a quirk in which the number of files (not their size) contained in the Plugins folder can cause crashes to desktop. This issue is inexplicably triggered with a much lower number of files if the user is running the game while not connected to the internet. To avoid these crashes, we recommend that the user use a tool like the cross-platform JDatPacker in order to combine the NAM files. Further instructions are included in the "READ FIRST" document.

Special thanks to memo from the NAM Team for spearheading this compatibility effort, and to Jonathan, Sabretooth78, and TEG24601 for testing and feedback.

The team would like to thank the Mac userbase for their patience, and we hope you enjoy this new package.

Network Addon Mod - Version 32.1 (Mac Installer)

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Network Addon Mod - Version 32.1 (Mac Installer)

Network Addon Mod - Version 32.1 (Mac Installer)

Jul 28, 2014 Full Version 21 comments

The Network Addon Mod (NAM) combines all transportation network-related fixes, additions and new creations that have been released so far. It will add...

Network Addon Mod - Version 32

Network Addon Mod - Version 32

Jan 14, 2014 Full Version 43 comments

The Network Addon Mod (NAM) combines all transportation network-related fixes, additions and new creations that have been released so far. It will add...

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Guest Jun 22 2015, 1:46am says:

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TarkusSC4 Creator
TarkusSC4 Jun 22 2015, 11:49pm replied:

We'd need to know exactly which pieces and the circumstances leading up to the crash. There's a few known issues that we can't fix (i.e. placing puzzle pieces over stations and other transit-enabled lots). Stop by our official support forum at, and we can get you all set up.

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imnorris May 25 2015, 5:31pm says:

Just installed this on my MAC for the app store version of SC4 and I placed the Network Addon Mod folder and the z___mod folder in the plugins folder by going through the Library, however, only some of the pieces are in the game. The roads are improved and intersections are different but there are no turn lanes, and the new road and highway pieces are not there but all the railroad and mass transit are. Not sure what I'm missing.

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TarkusSC4 Creator
TarkusSC4 May 26 2015, 3:47am replied:

When you say "placed", did you mean that you ran the installer, or did you manually pull apart the installer archive and plucked folders out of there? If it's the latter, that's not recommended and you probably didn't get everything. In any case, I'd re-run the installer, and make sure you're selecting the correct options.

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Guest Feb 6 2015, 1:25am says:

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TarkusSC4 Creator
TarkusSC4 Feb 6 2015, 3:44am replied:

There's a couple possibilities. Make sure you're installing the correct SKU version of EP1 Update 1. An incorrect SKU will act like it has patched, but it'll only do the job partially. You can safely try the others until you get the one that works. Also, make sure you're not using a NoCD executable. The NAM installer won't recognize those as valid patched installs.

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Guest Feb 6 2015, 6:45pm replied:

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polloio Jan 27 2015, 3:43am says:

Guys, I love you for bringing new life to this classic management game!! Keep the good work up!! ;)

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Guest Jan 24 2015, 5:57am says:

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TarkusSC4 Creator
TarkusSC4 Jan 26 2015, 2:28am replied:

By "old version", are you referring to an unpatched copy of SC4 Deluxe (Version 1.1.610)? If so, you'll need EP1 Update 1, which is available at SC4 Devotion ( Just click the "EA Support" logo on the left sidebar.

If you're referring to "vanilla" SC4 (i.e. not Deluxe and without Rush Hour), then the NAM won't work on your game.

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Released Jul 28, 2014
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Jan 27 2011, 6:56pm by XxKillTheLightsxX

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