Supported
About This File
The Network Addon Mod (NAM) all transportation network-related fixes, additions and new creations that have been released so far. It adds countless new features to the existing network tools, such as traffic simulator improvements, new overpasses, highway onramps, intersections, pedestrian malls, a ground light rail network, roundabouts and turning lanes.
This is the standard release version of the 49th edition of the Network Addon Mod, NAM 49.
See below for installation details and a list of new features in the Changelog at the very bottom.
In memory of Paul Pedriana, Lead Programmer for SimCity 4, who passed away in July 2021 from a sudden heart attack while cycling. Thank you, Paul, for everything--we wouldn't be here without you.
RELEASE NOTES
Before you run off in excitement to install the new NAM version, please make sure to read this document first, to ensure the best Network Addon Mod experience.
Note to users of the EA App/Origin: As of June 2023, digital copies of SimCity 4 Deluxe purchased via EA.com, the EA App, or the Origin Store, or played through EA Play/Xbox Game Pass are now properly patched to Version 1.1.641, which means they are compatible with the Network Addon Mod.
New Features for NAM 49
INSTALLATION AND GENERAL NOTES
Before attempting to run the NAM installer, ensure that you have extracted the contents of the .zip download into a folder. Attempting to run the installer while it is still in the .zip will cause the installation to fail.
For a complete walkthrough on installation, see the enclosed read-first-NAM-49.html file, or https://www.sc4nam.com/docs/getting-started/
The minimum requirements for running the Network Addon Mod are as follows:
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A compatible retail copy of SimCity 4 Deluxe Edition OR SimCity 4 with the Rush Hour Expansion Pack:
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Windows/Linux (via WINE): Any digital retail edition, or any disc copy updated to at least Version 1.1.638.
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macOS: Any recent digital edition of the Aspyr port for macOS (installation on the App Store version is more difficult, and the NAM Team is limited in our capacity to provide installation help to App Store users).
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The now-rare non-Deluxe/non-Rush Hour copies of SimCity 4 are not supported. Attempting to run the NAM on a non-Deluxe/non-Rush Hour copy of SimCity 4 will cause the game to immediately crash to desktop (CTD).
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Windows/Linux (via WINE): Any digital retail edition, or any disc copy updated to at least Version 1.1.638.
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Java Runtime Environment (JRE), in order to run the installer--a version for 64-bit Windows is included in the download (OpenJDK11U-jre_x64_windows_hotspot_11.0.8_10.msi).
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If you are not on 64-bit Windows and need Java, Adoptium's open-source edition is recommended, though JRE and JDK can also be acquired in proprietary/commercial (but free to download) form from Oracle at Java.com.
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The Java Development Kit, or JDK, will also work, but contains extra files not needed unless you are a Java developer.
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If you are not on 64-bit Windows and need Java, Adoptium's open-source edition is recommended, though JRE and JDK can also be acquired in proprietary/commercial (but free to download) form from Oracle at Java.com.
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A system with the following specs, for each basic type of NAM installation:
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NAM with a LowRAM/NoRHW Controller option: Any system built within the last 15 years, with 750MB available disk space. (Users running this option cannot install the RealHighway (RHW) features.)
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NAM with a Full 4GB Controller option: Any system with a 64-bit operating system, at least 4GB RAM, and 1.2GB available disk space. If on Windows, the 4GB Patch must be applied to the game's executable.
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NOTE: Installing the Full 4GB Controller option without meeting the specifications and without the 4GB Patch will cause the game to crash-to-desktop (CTD) upon attempting to load a city. If you experience this crash, it either means your system does not support the Full 4GB Controller option, or there was some form of failure in the 4GB Patch process.
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Additional Requirement on Windows/Linux (if running Full 4GB Controller/RealHighway options) (not required on Mac): 4GB Patch by NTCore (included in download, automatically installed on Windows with standard installation procedure, and also available at NTCore).
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See Step 3 (under "On Windows") or the 4GB Patch section in the read-first document for more details.
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See Step 3 (under "On Windows") or the 4GB Patch section in the read-first document for more details.
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NAM with a LowRAM/NoRHW Controller option: Any system built within the last 15 years, with 750MB available disk space. (Users running this option cannot install the RealHighway (RHW) features.)
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Additional Requirement on Mac (optional for Windows/Linux): JDatPacker by memo.
- JDatPacker is a tool for consolidating folders of SimCity 4 plugins. This can speed up the game's performance, and on macOS, this helps alleviate issues with the Aspyr port's known "number of files limit", wherein exceeding a certain number of files/folders within the game's Plugins directory can cause the game to crash.
To install the Network Addon Mod:
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Install the Java Runtime Environment (JRE) (if already installed, skip to Step 2).
(This is included in the download package.)
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Remove any existing NAM installations, if present (simply deleting the "a_Network Addon Mod Lite" and/or "Network Addon Mod" folder from the Documents\SimCity 4\Plugins directory is the easiest way).
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Run the NAM Installer:
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On Windows:
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If it your first time installing the NAM (or you are installing on a new system/with a new SC4 install), use NetworkAddonMod_Setup_Version49.bat. If you are upgrading from a previous version, or have manually installed the 4GB Patch already (see the 4GB Patch section in read-first), use NetworkAddonMod_Setup_Version49.jar. (The .bat file has a routine to automate the 4GB Patch installation process, necessary to avoid CTDs if running the Full 4GB Controller option, which is necessary to use the RealHighway (RHW) features.)
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If it your first time installing the NAM (or you are installing on a new system/with a new SC4 install), use NetworkAddonMod_Setup_Version49.bat. If you are upgrading from a previous version, or have manually installed the 4GB Patch already (see the 4GB Patch section in read-first), use NetworkAddonMod_Setup_Version49.jar. (The .bat file has a routine to automate the 4GB Patch installation process, necessary to avoid CTDs if running the Full 4GB Controller option, which is necessary to use the RealHighway (RHW) features.)
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On macOS:
- Run NetworkAddonMod_Setup_Version49.jar.
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If on the App Store version, the installer cannot directly install into the Plugins location the App Store version utilizes, which is inside the .app file (~/Library/Containers/com.aspyr.simcity4.appstore/Data/Documents/SimCity 4). Install to an alternate location first, then copy the resultant "Plugins" folder into that location. Note that the NAM Team is currently very limited in our ability to provide installation assistance to App Store users.
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On Linux:
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Run NetworkAddonMod_Setup_Version49.jar, or, if that fails, run NetworkAddonMod_Setup_Version49.sh.
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Run NetworkAddonMod_Setup_Version49.jar, or, if that fails, run NetworkAddonMod_Setup_Version49.sh.
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On Windows:
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Follow the installer's instructions, clicking on each tab on the top bar in order:
- Agree to the mod's terms on the initial "welcome" tab to proceed with the installation.
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Select the options you would like to install under the "files" tab.
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Select the install location under the "location" tab. Unless you have set up an alternate location for your Plugins folder, or happen to be on the Mac App Store version of the game, this should work fine.
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Finally, move to the "install" tab. Click the "Start installation" button to begin the installation process. When the installation is complete, the progress screen will display a message, "All selected components installed!".
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Close the installer, using the "X" button or, on macOS, the red circular button, in the upper right corner of the window. You're all done installing the mod.
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Additional step for Mac users (optional on Windows/Linux):
(Run JDatPacker to consolidate the mod's files.)
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If on the App Store version, run JDatPacker over the resultant Plugins directory, then move the "Network Addon Mod_###.dat" files (wherein "###" is a three-digit number) into the container.
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On the Steam version (or if optionally using JDatPacker on Windows), run JDatPacker on the Documents\SimCity 4\Plugins directory (this will also consolidate your other plugins as well). Make sure you remove the original directories that were consolidated, and, if upgrading or reinstalling your NAM package at any point, ensure you delete any the "Network Addon Mod_###.dat" files from your Plugins before running the new installation. It is recommended that you use a new subfolder (i.e. "Plugins\Compressed Files") instead of installing to the root of the Plugins directory, as this can help prevent mod conflicts.
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If on the App Store version, run JDatPacker over the resultant Plugins directory, then move the "Network Addon Mod_###.dat" files (wherein "###" is a three-digit number) into the container.
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Load the game and enjoy the NAM!
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If the game crashes on your first attempt to load a city, this means you have the Full 4GB Controller installed, but either have experienced a failure in the 4GB Patch process, or have an incompatible system (not enough RAM and/or a 32-bit operating system). Either attempt to install the 4GB Patch manually, or choose a less intensive installation option (the Low RAM/No RHW option, or download NAM Lite instead).
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Note that if you've never run the NAM before, and you've picked a fuller installation option, the initial load of the game, and of the first city tile you open may be longer--often quite noticeably. This will shorten with subsequent loads of other cities, or, if you exit and re-enter the game, subsequent re-entries will be quicker.
- If you do not see any icons in game, this most likely means your installation ended up in the wrong location. Either reinstall, making sure the files go into your Documents\SimCity 4\Plugins folder (true of Windows and the Steam Mac version), or, if you're on the Mac App Store version, make sure you copy the files into the .app container.
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If the game crashes on your first attempt to load a city, this means you have the Full 4GB Controller installed, but either have experienced a failure in the 4GB Patch process, or have an incompatible system (not enough RAM and/or a 32-bit operating system). Either attempt to install the 4GB Patch manually, or choose a less intensive installation option (the Low RAM/No RHW option, or download NAM Lite instead).
More details on installation and compatibility can be found in the enclosed read-first-NAM-49.html file.
NAM Lite
As mentioned above, an alternative compact version of the NAM is now available, which can be installed instead of the full NAM installation package.
The NAM Lite features just the most essential of NAM features, including the NAM's renowned Traffic Simulator Plugins, refining SimCity 4's pathfinding engine to work as it was originally intended, along with Automata Controller options, updated textures (including a Euro/International texture option), Roundabouts, Diagonal Streets, additional interchanges for the game's base Highway system (the "Maxis Highways"), and (optional) Hole Diggers/Ground Raisers, allowing for precise terrain alteration.
See here for more details and to download NAM Lite:
DOCUMENTATION
For further details on the NAM and its features, visit our new website at:
https://www.sc4nam.com/
Please note that NAM 48 and earlier have been discontinued, and are no longer eligible for any form of technical support.
Thank you all for your continued support--hope you enjoy!
©2025 NAM Team
What's New 47 View Changelog
Released
New Features for NAM 47
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Pedestrian Revolution Mod Features:
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The NAM Team is pleased to present the Classic Draggable Pedmalls, courtesy of Ulisse Wolf and Lucario Boricua. These come in 8 styles, 6 of which are equivalents to the Pedmall Puzzle Pieces, and introducing 2 new designs: the Retrowave Red Brick, inspired in the old brick texture used for the U-Rail in earlier NAM versions, and the Industrial Style, using the concrete surface typical of industrial lots. The initially supported features of these pedmalls include:
- Multidirectional draggable starter pieces using the Street network, supporting all orthogonal, diagonal, intersection and roundabout configurations, with the exception of wide radius curves.
- Intersection support (OXO T and 4-way) in the form of mid-block crosswalks. These support Road, Avenue, and all two-way Network Widening Mod override networks (TLA-3, AVE-2, ARD-3, NRD-4, TLA-5, RD-4, RD-6, TLA-7 and AVE-6). These draggable pedmalls are also compatible with the FLEX mid-block crosswalk pieces.
- Special underground paths enable residential zone development, while crossings discourage car traffic through restricted car paths.
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In addition, some enhancements to existing functionality have been implemented:
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The override code for the size 3 mid-block crosswalks for TLA-7 and AVE-6 have been overhauled, enabling these to be overridden from one side.
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The override code for the size 3 mid-block crosswalks for TLA-7 and AVE-6 have been overhauled, enabling these to be overridden from one side.
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The NAM Team is pleased to present the Classic Draggable Pedmalls, courtesy of Ulisse Wolf and Lucario Boricua. These come in 8 styles, 6 of which are equivalents to the Pedmall Puzzle Pieces, and introducing 2 new designs: the Retrowave Red Brick, inspired in the old brick texture used for the U-Rail in earlier NAM versions, and the Industrial Style, using the concrete surface typical of industrial lots. The initially supported features of these pedmalls include:
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RealHighway (RHW) Features:
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RHW-12S A new, 12-lane quadruple-tile RHW network (separable into two dual-tile halves, carrying 6 lanes in each direction) has been added, with the following features:
- Three height levels are supported: L0/Ground, L1/7.5-meter elevation, and L2/15-meter elevation. Transitioning between these height levels is supported by the ramp-style FLEX Height Transitions (FLEX-HT), as well as the FLEX OnSlope Transitions (FLEX-OSTs), by connecting them to the RHW-12S networks.
- The RHW-12S features the same network crossings presently available to the other S-Type RHW networks, including crossings in all orientations for all Maxis base networks, all other RHW networks, Draggable Ground Light Rail, and Draggable Road Viaducts (L0-under-Viaduct-only), plus Orthogonal x Orthogonal (OxO)-only support for Network Widening Mod networks, Elevated RealRailway (ERRW) Viaducts, Tram-on-Street, Tram-in-Road, and Tram-in-Avenue. Limited Hybrid Railway (HRW) support also exists.
- Extensive ramp interface support: supported ramps using FLEXRamps and Draggable Ramp Interfaces (when applicable) include Orthogonal Type A1 (all levels), Type B1 (all levels), Type D1 (all levels), Type E1 (all levels), Type A2 (all levels), Type B2 (L0 only), Type D2 (all levels), Type E2 (L0 only), Type A1-Inside (all levels), Type B1-Inside (all levels), Type D1-Inside (L0 only), Type E1-Inside (L0 only), the new Type A3 (L0 only) and Type D3 (L0 only), plus Diagonal Type A1 (L0 only), Type B1 (L0 only), Type D1 (L0 only), and Type E1 (L0 only).
- FLEX Width Transition (FLEX-WT) has been added, to support width transitions between RHW-12S and RHW-10S at all applicable height levels.
- FLEXFly over and undercrossings are supported with the RHW-12S (orthogonal-only, as diagonal undercrossings for FLEXFly do not presently exist for any network).
- Several bridges have been added (see Bridge section).
- Support for FlexSPUI is presently limited, and Three-Level Crossings are not yet supported.
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RHW X3 Ramps: The first two FLEX 3-lane ramps, in A3 and D3 configurations, have been provided for RHW-8S, 10S and 12S. At present, only L0 support is available.
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RHW General Improvements:
- Some enhancements, courtesy of memo, have been made to facilitate FLEXFly-over-FLEXFly functionality.
- Some enhancements, courtesy of Flann, to elevated RHW network models have been added.
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Various adjacencies involving RHW x RHW crossings next to the base orth-diag curve on the smaller networks (RHW-6S and smaller) have been addressed.
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RHW-12S A new, 12-lane quadruple-tile RHW network (separable into two dual-tile halves, carrying 6 lanes in each direction) has been added, with the following features:
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Bridges: A multitude of new bridges have been added, courtesy of IDS2 and Kitsune:
- New viaduct bridges for L0 RHW-8S, L0 RHW-10S and L0-L2 RHW-12S.
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A pair of new Steel Arch bridges for RHW-10S and RHW-12S.
- Base Network Features: A new 5x5 90° Wide Radius Curve FLEX piece has been added to the Avenue network.
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Miscellaneous: A huge number of bugfixes have been done for this release, including:
- Various RHW situations involving "tile drops", such as the RHW-8S-to-6S FLEX Width Transitions, the RHW-8S Type D1, E1, and B2 ramps, and the RHW-10S Type D2 and E2 ramps, have received considerable stability upgrades.
- The orientation of the Road end-T on OWR-1 intersection has been corrected.
- The orientations of certain NWM intersections involving the OWR-1 network with Euro textures have been corrected.
- Stability improvements have been made to the Ground Light Rail crossings with various wider RHW networks.
- The Dual Type 230 QCXs with L1 Dual Type 230-over-RHW-8C/6C and RHW-10S/8S have been improved.
- Issues in which lane drop arrows appeared in the wrong places on the S-to-C FLEX Width Transitions have been corrected.
- The ramp textures for the RHW-10S Type D2 and E2 ramps, as well as for the RHW-8S Type A2-Wide and B2 ramps have been improved.
- Orientation and stability issues have been fixed with the Avenue-based AVE-6 and its Thru-T-intersections with Street, Road, and One-Way Road (both Short-T and Long-T).
- Orthogonal x Diagonal slip lanes involving Road and One-way Road (OWR) have been re-implemented.
- Several hundred path files across all areas of the NAM have been fixed by memo and Tarkus.
- More SAM Street crossings with the Rail network have received crossing gates.
- Euro wealth textures have been added to the Avenue-based AVE-6 network.
With version 47:- Download
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236
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22
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50
