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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Edit (August 25th): NAM 42 is now available for download!

Re-energized with a rapidly-growing development and support staff, along with a new "Agile-like" strategy for releases, the NAM Team has pulled out all the stops for NAM 42.

One of the NAM Team's newest members, Lucario Boricua, has put together two "Secret Weapon" videos, showing off two of NAM 42's most prominent additions. Without spoiling the surprise, here is the first of these "Secret Weapons"--a feature that actually began development back during the NAM 31 cycle in 2013, under the auspices of SC4 modding legend memo, and, thanks to the efforts of prominent NAM Team developer eggman121, is finally seeing the light of day:


While the first "Secret Weapon" allows for a lot of new latitude in building interchanges with the RHW, the second does much the same for the spaces in between. Designed by NAM Team lead Tarkus, this feature has been in development since 2015, and is now making its debut in NAM 42:


There's plenty more to NAM 42 beyond these two features, ranging from more roundabout functionality, to new rail stations, to massive stability improvements to the popular Network Widening Mod (NWM) plugin.

nam ulisse 08222021

(Photo credit: ulisse; New feature development credit: ulisse, Bipin)

nam 08222021 1

(Photo credit: Tarkus; New feature development credit: Flann, Tarkus)

nwm 05302021 1

(Photo credit: Tarkus; New feature development credit: Tarkus)

While the NAM Team does not announce release dates--we like to surprise people--stay tuned to our project page here at ModDB, because NAM 42 is, dare we say . . . imminent. Thank you for your continued support of the Network Addon Mod, as we continue to go "all gas, no brakes" on improving SimCity 4's transportation functionality.

Network Addon Mod (NAM) Version 39 Now Available for SimCity 4

Network Addon Mod (NAM) Version 39 Now Available for SimCity 4

News

SimCity 4's longest-running and most-downloaded mod project is back with another release--its 39th--adding a number of exciting new additions and improvements...

Network Addon Mod (NAM) Version 37 Now Available for SimCity 4

Network Addon Mod (NAM) Version 37 Now Available for SimCity 4

News

The NAM Team is pleased to announce the official public release of NAM 37, the 37th edition of the Network Addon Mod for SimCity 4 Deluxe. The first full...

SimCity 4 NAM Development Entry 18-1: RealHighways Get An "Easy Button" (Literally)

SimCity 4 NAM Development Entry 18-1: RealHighways Get An "Easy Button" (Literally)

News 4 comments

Yes, 15 years after the release of SimCity 4, the Network Addon Mod remains in active development. This latest update centers on the development of a...

Network Addon Mod Version 36 Released for SimCity 4

Network Addon Mod Version 36 Released for SimCity 4

News

SimCity 4's long-running transportation modding project is still going, with a new release featuring the long-awaited FLEX Turn Lanes and Draggable Elevated...

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Network Addon Mod - Version 43 [Cross-Platform]

Network Addon Mod - Version 43 [Cross-Platform]

Full Version

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

Humacao: Prefab SC4 region with RHW networks

Humacao: Prefab SC4 region with RHW networks

Prefabs 1 comment

A large SimCity 4 region with NAM highway and railway networks pre-built in the pre-incorporated cities. You must install the dependency mods in the readme...

The Bay

The Bay

Prefabs 2 comments

A secluded inlet fed by a river descending from the surrounding cradle of mountains provides the perfect spot to build a town or two, or even a thriving...

Comments  (0 - 10 of 178)
Guest
Guest

is there a mac version?

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TarkusSC4 Creator
TarkusSC4

The current download for the NAM is cross-platform, meaning it's the same download for Windows, Mac, and Linux.

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Chocolate_Taco
Chocolate_Taco

32bit can use?

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TarkusSC4 Creator
TarkusSC4

Yes, but it requires installing the LowRAM/NoRHW option for the NAM Controller, and does not permit one to run the RealHighway (RHW) features, which require the greater access to RAM that a 64-bit OS and the 4GB Patch provides.

Reply Good karma+1 vote
DaemonTargaryen
DaemonTargaryen

I downloaded the NAM 39 mod for Simcity 4 steam edition, but it won't show up on my game. I tried doing the roundabout feature to test it out and it doesn't work. How do I get the NAM to actually enter my gameplay?

PS: what's the best way to get a shorter commute time using the NAM?

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TarkusSC4 Creator
TarkusSC4

Make sure you run the installer (NetworkAddonMod_Setup_Version39.jar for the current version). Simply dropping the contents of the download into your Plugins folder will not install the mod, and nothing will show up in game.

The big difference between the NAM's Traffic Simulator Plugins and the game's default is that it causes the traffic simulation to look for the route that takes the shortest amount of time, rather than merely the shortest distance. For instance, the game will recognize that the Avenue you built has a higher speed/capacity and actually allow it to be utilized, rather than clogging a Street simply because it's two tiles shorter.

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Guest
Guest

What new methods of transportation did you add? (And also ambient vehicles, like maybe hot air balloons?)

Also, how can I add it to my game? Under which files do I put it? (I'm running SimCity rush hour on windows 7)

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TarkusSC4 Creator
TarkusSC4

The list of additions to the game's transportation networks is probably too long to list. Note, however, we did not add any new transit types per se, and ambient vehicles are more something we leave up to third parties.

The mod has an installer, which, since it's Java-based, is a .jar file and not a .exe file, and will need the Java Runtime Environment (JRE) in order to run. Also make sure you patch the game to be Large Address Aware (LAA) using the enclosed 4gb_patch.exe file, as this is a big mod that requires more access to RAM (and without the patch, the game will crash). Simply putting the files in Plugins without running the installer will have no effect.

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Guest
Guest

It crashes on the loading menu when I load a map. Only deleting the mod fixes it. I've even installed the 4gb patch and tried the launcher and everything. Nothing's working

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TarkusSC4 Creator
TarkusSC4

Which version of SC4 are you running? The 4GB Patch will prevent NAM 37-specific crashes, even if you have less than 4GB RAM, so something most likely went wrong with your patching.

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Latest tweets from @tarkussc4

Also, last SimTarkus article for 2021 is now up, about the subject of pre-built regions, and why they aren't a thin… T.co

Dec 31 2021

Even before 2022 hits, and a mere week after #nam43 was released, #nam44 for #simcity4 has already entered internal… T.co

Dec 31 2021

BTW, unbeknownst to pretty much anyone, an initial round of #ProjectZIP files went onto the LEX at #sc4devotion. Y… T.co

Dec 27 2021

RT @Simtropolis: NAM 43 is now available on the STEX as a present to the community! Thanks to @tarkussc4 and the entire NAM Team for… T.co

Dec 25 2021

#nam43 for #simcity4 now available @ModDB Moddb.com

Dec 24 2021

#nam43 for #simcity4 is now available at #sc4devotion: Sc4devotion.com T.co

Dec 24 2021

Hmm . . . what's this Sc4nam.com thing? #simcity4 #networkaddonmod #sc4nam

Dec 12 2021

The #rhw can still do rural, BTW. More pics on the dev thread at SC4 Devotion #nam43 #simcity4T.co

Sep 28 2021

#nam42 for #simcity4 at @Simtropolis--shout out to Cori and CB for their help! Community.simtropolis.com

Aug 24 2021