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SC4 Bugs & Technical Issues

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Get help with SimCity 4 technical problems, including graphical, hardware and compatibility issues.

Forum Guidelines

This forum is for problems with SimCity 4 itself.
Issues with plugins should be posted in Custom Content, and the Network Addon Mod in NAM Transit Networks.
Make sure your topics are meaningful and descriptive, avoid topic titles such as "help".
Above all, be friendly and helpful to each other.

8,017 topics in this forum

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No Road Connections?

By Soldier_Why, June 21, 2006
- 5 Replies
- 268 Views
- Soldier_Why
- July 9, 2006
Weird Graphics/Rendering Problem

By rustawilliams, July 8, 2006
- 11 Replies
- 318 Views
- rustawilliams
- July 9, 2006
Night Lights

By luijo100, July 2, 2006
- 14 Replies
- 424 Views
- SC4BOY
- July 9, 2006
how to take photo with out the Menu

By liebenik, March 6, 2006
- 6 Replies
- 410 Views
- 999999999
- July 8, 2006
Crash to desktop using NAM pieces

By Cyrus99, June 22, 2006
- 8 Replies
- 555 Views
- A Nonny Moose
- July 8, 2006
Setting Problems

By laursoN, July 6, 2006
- 6 Replies
- 273 Views
- A Nonny Moose
- July 8, 2006
map generation issues

By kenes, July 7, 2006
- 10 Replies
- 275 Views
- kenes
- July 8, 2006
CD problems

By UnkleS27, July 7, 2006
- 6 Replies
- 224 Views
- SC4BOY
- July 8, 2006
Building ZONE arrows and plop arrows..

By SC4BOY, July 2, 2006
- 4 Replies
- 590 Views
- A Nonny Moose
- July 7, 2006
Argh<crash>the game keeps<crash>quitting on<crash>me!

By Birgitte Heuschkel, July 6, 2006
- 9 Replies
- 350 Views
- A Nonny Moose
- July 7, 2006
Pointer help...

By chrispb, July 7, 2006
- 7 Replies
- 160 Views
- jacqulina
- July 7, 2006
Sunken Highway eye candy plugin

By castun, July 6, 2006
- 4 Replies
- 587 Views
- prince_of_sims
- July 7, 2006
Wheres my road gone?

By raindog, June 23, 2004
- 13 Replies
- 489 Views
- MattBrancher
- July 7, 2006
STEX is buggy

By TinySim, July 4, 2006
- 6 Replies
- 290 Views
- Dirktator
- July 6, 2006
Rail Slope Problems

By josterha, July 5, 2006
- 4 Replies
- 304 Views
- prince_of_sims
- July 6, 2006
Avenue Median Graphics Glitch

By Strato, March 22, 2006
- 15 Replies
- 576 Views
- tungston
- July 6, 2006
Downloaded building problem

By Bumdark, July 6, 2006
- 4 Replies
- 162 Views
- A Nonny Moose
- July 6, 2006
Network Addon problems

By Dif, July 6, 2006
- 2 Replies
- 242 Views
- A Nonny Moose
- July 6, 2006
Uploading pictures for city journals

By Wlvrn567, July 5, 2006
- 2 Replies
- 221 Views
- A Nonny Moose
- July 5, 2006
ground texture looks weird

By RHMgerards, July 5, 2006
- 7 Replies
- 293 Views
- RHMgerards
- July 5, 2006
Back Ups and Reinstalling

By frdracaufeu, July 3, 2006
- 10 Replies
- 329 Views
- bhounsome
- July 5, 2006
rain mod problem

By Sim shady, July 5, 2006
- 4 Replies
- 369 Views
- Sim shady
- July 5, 2006
parking lots turning into parks, etc.

By durtlskdi, June 6, 2006
- 5 Replies
- 342 Views
- A Nonny Moose
- July 4, 2006
Random Objects Disappearing

By annoyingdan, June 30, 2006
- 18 Replies
- 355 Views
- A Nonny Moose
- July 4, 2006
Total noob

By Bast89, July 4, 2006
- 2 Replies
- 171 Views
- Bast89
- July 4, 2006
Need help on how to get regions

By gui2000, July 3, 2006
- 2 Replies
- 256 Views
- sim1234
- July 4, 2006
Cant find in-game tutorial

By shes_jinxed, July 2, 2006
- 4 Replies
- 288 Views
- shes_jinxed
- July 3, 2006
Needing Assistance Again!

By BEJA, June 30, 2006
- 8 Replies
- 234 Views
- BEJA
- July 3, 2006
Ferries Stuck on Sandbar?

By dmrsunz, July 2, 2006
- 2 Replies
- 246 Views
- dmrsunz
- July 3, 2006
virus in sc4 terraformer

By warrior, July 3, 2006
- 7 Replies
- 444 Views
- greyveil
- July 3, 2006

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Forum Activity
- I'm so confused
  
  By doady · Posted: 16 minutes ago
  
  Low occupancy is a reflection of low desirability rather than low population. For any building, residential or commercial, if you increase desirability it will increase the amount of occupants. You don't need 120k jobs for 120k population. It's more like 1:2. My current city has 190k people, 110k jobs, no problem. But even so, the amount of employment land will be disproportionately high compared to residential land. Job demand can be fulfilled easily enough even with the low max occupancy of industrial buildings, so mods that increase double or quadruple industrial occupants may have unintended effects, and completely unnecessary anyways from a pure gameplay perspective. Ultimately, the game is in an unfinished state, and only so much we can do about the bugs and unbalanced gameplay. The issue with high density is even one new building can fulfill demand too fast, and thus create negative demand. Looking at your city, I don't see any obvious corridors for commercial zones. This is also one of the central tenets of Transit-Oriented Development: minimizing the distances of residents and jobs to major corridors. Establishing strong corridors means carefully zoning and laying out streets and major roads. One important thing to note is intersections increase travel times, so assuming you have any pathfinding fix installed (such as NAM), commuters will naturally gravitate to major corridors that have fewer intersections. Likewise, you can find ways to make it less convenient to travel on side streets.
- Can't find it?... Ask here!
  
  By fightingcock · Posted: 35 minutes ago
  
  I am currently building a pre WWII midwestern city. I NEED pre WWII commercial passenger aircraft, and I also need a river paddlewheel steamboat or steamboats, any help would be greatly appreciated. Thanks.
- Advanced Lot Plop - new GUIs with DLLs
  
  By 11241036 · Posted: 1 hour ago
  
  @CasperVg I've been trying out the newest Plop&Paint mod. Great new additions to this mod, especially the terrain decal function, it allows to fill a lot of gaps left by NAM networks. However, there seem to be a few issues. Also, I'd like to make some suggestions on how to improve it: As already mentioned, the mod cannot paint textures ending with 5 or A. That would be great if you could add that to the game. The mod only reads lot textures - it would be great if it could also read traffic textures, such as those from the NAM. BTW, lot textures have a GID of 0x0986135e, and traffic textures a GID of 0x1abe787d. With the installation of version 0.9.1, I seem to be unable to raise props I'm about to paint. Is it just me, or is this feature suddenly missing? Also, is it just me, or does version 0.9.1 interfere with the Season Jumper DLL? After installing version 0.9.1, the Season Jumper DLL suddenly stopped working. Also, a few questions: Does the terrain decal function allow for more than one texture to be painted? This is important if you want to place a base and an overlay texture. BTW, as far as I know, both of these textures use the same GID, the only difference is: The game considers textures with transparent or semi-transparent parts alsways to be overlay textures and fully opaque textures to be base textures. Does it distinguish between base and overlay textures, like the LE?
- Submenus DLL
  
  By Andreas Roth · Posted: 1 hour ago
  
  NTUser.dat is a Windows system file that shouldn't be touched, an it certainly wasn't created by the SC4 CLI tool. I'll try to write down a short walk-through how to create a new submenu and then add a lot (or several lots) to it: 1. Start SC4 CLI Tool and select "Create a new submenu" with the arrow keys, enter a name an a description (just type and then press enter to go through the next step). 2. Select the parent menu for the new submenu, i. e. "Civics" and then "Parks", if you want to create a new submenu for a set of park lots. Pick "[root]" once you entered the desired sub(sub-sub)menu. Just accept the randomly generated button ID. 3. In the next step, a browser window will open, and you're supposed to select a PNG file for an icon. Ideally, you have some screenshot of a lot ready, but you can also pick any other image. If you keep the checkmark, it will use the default icon template and add the four icon states, along with the standard icon borders. Click "Use as icon" to import the selected image. Finally, enter an Item Order, which defines the placement of the icon in the menu (the default would be 0 or 1). 4. Now open your Plugins folder, you'll find a new file called "submenu_[the name you entered before].dat" in the Plugins root. If you like, you can open this file with the Reader. It will contain an Exemplar file with the necessary properties, two LTEXT files with the name and description of your new submenu and a PNG icon. 5. For adding lots to the new submenu, the easiest way is close the CLI tool first, and then open the folder where the tool's executable file (sc4.exe) is located. Open another Explorer window with the folder where the lot(s) that you want to add to the submenu are located. Now drag this folder onto the sc4.exe. It will open again with the proper folder path applied. Now select "Add lots to a submenu" and press enter. 6. Use the arrow keys again to navigate to the submenu that you just created (i. e. "Civic"/"Park"/[the name that you entered before]). The tool will ask where you want to save the submenu patch, simply select the pre-defined folder (which should be the folder where your lots are). It will save a new file called "submenu_patch.dat". If you open this file with the Reader, you'll find a single Cohort file, this contains a property named "Exemplar Patch Targets". This is basically a list of all lot IDs that were added to the submenu (by default, all the lots that were in the folder that you selected before). 7. Personally, I like to remove clutter, hence I copy the Cohort file over to the "submenu_[the name that you entered before].dat", then delete the patch file, and move the other DAT from the Plugin's root into the subfolder where the lots that have been added to the submenu are located. In this file, you can also edit the LTEXT files with name and description again, if desired.
- SC4PIM-X 2026 & New Properties Update Out Now!
  
  By Andreas Roth · Posted: 3 hours ago
  
  Wow, the new preview background looks really spiffy, reminds me of that early 2000's clean pixel art that was popular on websites and such back then! Minor suggestion for the layer/preview style menu buttons in the Lot Editor: Add a small triangle in the lower right, so you can see that this is a menu, and not just a button. Apparently, you missed my updated language file above, so a lot of stuff was not translated. FWIW, I've updated the file again and added all the new text strings, and reworked a handful of your own German additions, avoiding the "Sie" in favor of the more personal "Du" (see attachment below). I've noticed that the category tree on the left side contains some misleading entries for growable residential lots. Everything else is labeled CS$, CO$$ and such, but the R category just has $ signs. I fixed that in the German language file already. de.toml_v4.zip Everything else looks really great, and with the new building/lot converter SC4-PIMX gets even more powerful! I wonder what the next step could be, maybe a wizard for new submenus, similar to the SC4 CLI Tool? EDIT: I just found one untranslated text string in the Lot Editor's lower right corner: "Family variations" (German: "Familien-Variationen"). EDIT2: I found one other misleading label in the lower left corner with the model preview. The "viewerModel" text string should be simply "Day" (German: "Tag") instead of "Model state".
- 157
  
  Advanced Lot Plop - new GUIs with DLLs
  
  By CasperVg
  Started October 18, 2025
- 551
  
  Submenus DLL
  
  By memo
  Started February 25, 2024
- 20
  
  SC4PIM-X 2026 & New Properties Update Out Now!
  
  By Ulisse Wolf
  Started July 10
- 265
  
  BAT4Blender
  
  By memo
  Started July 30, 2024
- 59
  
  STEX Custodian General Support Topic
  
  By STEX Custodian
  Started September 26, 2019

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