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 42 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...

Post comment Comments  (30 - 40 of 142)
dwreck420 Aug 11 2014, 9:29pm says:

i have the "NetworkAddonMod_Traffic_Plugin_Z_Ultra" installed, but i still feel my avenues and roads get over capacity reallly quickly. what can i do as far as the NAM goes to help really ease my congestion in my megamega cities?

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TarkusSC4 Creator
TarkusSC4 Aug 12 2014, 7:37pm replied:

If you have installed the Traffic Simulator Configuration Tool (TSCT), you can actually increase your capacity beyond the standard Ultra setting, by selecting Ultra as the "Base Network Capacity" and raising the "Network Capacity Multiplier" (which will go up to 2.0).

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Joebama Aug 4 2014, 12:11pm says:

I really like this mod, but it really messes with the U-Drive-It missions; causing my car to just disappear or blow up for no reason. Can't it be possible to make some of the road types actually be roads and not ploppables?

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TarkusSC4 Creator
TarkusSC4 Aug 5 2014, 2:52pm replied:

As isii94 mentioned, there are draggable options. We've been able to simulate new networks to a large extent using the starter piece approach (place the starter, drag a default transit network through it, and the starter turns it into something else), but if you're wanting actual networks just like the defaults, without the starters, unfortunately, that's not possible. Even if it were, it would have no impact on U-Drive-It, either.

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isii94 Aug 4 2014, 5:09pm replied:

It is planned/under development making most items draggable by drawing patterns. There are some cases, though, where this can't be done.

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Guest Jul 21 2014, 10:02am says:

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TarkusSC4 Creator
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.

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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 Creator
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 Creator
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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