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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0 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 0 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 20 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 Jul 21 2014, 10:02am says:

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TarkusSC4 Jul 22 2014, 12:25am replied:

Much as with everything we've released (save for NAM 31.0), there's no release date or concrete timeline for the release of the new Mac version, which will be known as NAM 32.1. We are getting very close, however. Keep an eye out here.

+1 vote     reply to comment
nomad1414 Jul 17 2014, 12:45pm says:

I can't install the mod , I keep getting that it has stopped working .

+1 vote     reply to comment
TarkusSC4 Jul 18 2014, 7:35pm replied:

Sorry to hear you're experiencing difficulty. When does the installer stop working? Note that you need to have a properly updated retail copy in order to install the mod. You may be able to get more detailed help by visiting our official tech support forum at

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Guest Jun 28 2014, 11:04am says:

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TarkusSC4 Jun 28 2014, 9:34pm replied:

Download the package, unzip it, run the extractor, then run the installer that comes out of the extractor. The installer will put everything in its right place. (Having the extractor allows us to offer a download package a quarter of the size it would be otherwise.)

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Guest Jun 14 2014, 7:49am says:

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TarkusSC4 Jun 14 2014, 11:27pm replied:

Just as with any other version of Windows. While there are some special things you'll need to do to get the game itself to run well in Win 7 (Win XP SP3 compatibility mode, setting core affinity if you have a multi-core CPU), once that's done, the NAM doesn't require any other finagling.

+1 vote     reply to comment
TarkusSC4 May 29 2014, 1:39am replied:

Stop by our official support forum at We're better equipped to handle things like that there. The Origin version should be up to 1.1.641, and should theoretically be able to handle it.

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Guest May 29 2014, 6:53am replied:

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

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Latest tweets from @tarkussc4

#NAMforMac is live on @ModDB.

Jul 28 2014, 3:45pm

#NAMforMac has arrived on the @SC4DevotionLEX. Coming shortly to @ModDB and @Simtropolis.

Jul 28 2014, 4:44am

@RaymieX 32.1 is indeed the Mac installer. The only changes between 32.1 and 32.0 are the fixes for Aspyr port compatibility.

Jul 28 2014, 4:18am

Much Mac. Very NAM. So installer. Such imminent. Wow. #NAMforMac

Jul 28 2014, 3:42am

Imminent . . . ?

Jul 24 2014, 3:07pm

The latest from SimTarkus: why we lock files on the @SC4DevotionLEX:

Jul 14 2014, 7:56pm

Wondering about #NAMforMac? We're getting quite close on a 32.1 release that'll have you covered. With an installer, to boot.

Jul 14 2014, 7:54pm

RHW development goes on a RAMPage. More FLEXRamp and Extended DRI goodness to look at @sc4devotion.

Jul 6 2014, 5:29am

Ever more elevated ramp interfaces . . . credits to MandelSoft and yours truly. #RHWrevolution

Jun 24 2014, 12:07am

Page 604 of the RHW Development Thread @sc4devotion is shaping up to be pretty cool. #RHWrevolution

Jun 18 2014, 4:31am

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