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Maxis Tree HD Replacement Mod 1.0.1

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About This File

Hey folks, you might not be aware of this, but this file actually marks my 100th STEX upload!! I think this justifies a little interruption of the usual IRM fare.

I've been tinkering with such a mod for at least 2 years, but up until recently I had always run into a brick wall because there were simply not enough suitable tree models available. This is really harder than you might think because a tree must have the following characteristics to replace its Maxis counterpart:

  • similar height (so it covers about as much as a Maxis tree would, but doesn't interfere with anything)
  • similar diameter (so it doesn't cut into adjacent structures and will fit wherever the corresponding Maxis tree fits)
  • LOD centered on the trunk and not the crown (so the trunk isn't off center and ends up next to a planter, bed, or dirt circle instead of right inside)
  • lack of branches near the ground (so it won't cover entrances, benches and other stuff that's supposed to be under the tree crowns and not buried under twigs and leaves)

Finding trees that fit the bill is really hard, but I'm positive that I finally did it. While this choice may not be perfect, I'm confident it's one of the best options available while I'm writing this. To my knowledge, while there have been noteworthy and admirable mods in the past, this is the first one that replaces all Maxis trees on lots and along streetsides/roadsides with 100% HD flora made by girafe and Orange_o_, two BAT masters whose flora props raised the bar considerably and set the standard these days IMO. It bugged me that so many Maxis trees - SD at 2003 quality level - were still to be seen everywhere when we already had modern, crisply rendered, high-definition flora for pretty much everything else. Well, not any more!

This upload consists of three components - the base pack and two optional bonus packs. Here's a breakdown of these three components and what they'll do:
THE BASE PACK - this is the actual mod. The bonus packs work as extensions of this mod, i.e. they require this base pack as a dependency. It does the following:

  • It will replace all Maxis trees on lots with beautiful HD trees. Lots already existing in your city will automatically switch to the new trees. Whatever grows or is plopped subsequently will show the new trees in place of the old Maxis ones.
  • Besides, it will replace roadside trees that occasionally show up at the sides of streets and roads (T21's for the tech-savvy among you).
  • All Mayor Mode and God Mode flora in the city map will remain unaffected.
  • However, the Mayor Mode tools (menu icons) for setting Maxis trees are removed. Why? Well, if you use this mod, the tools will actually plant the new HD replacements for the Maxis trees. This is superfluous because you need the corresponding tree packages as dependencies anyway, and these come with far superior and more flexible Mayor Mode tools, which will show up in your menu instead.
  • For those of you who don't like palm trees, the pack contains an optional palm tree override. If you decide to use it, all Maxis palms will not revert to better HD palms, but to cypress trees instead. They are similar in terms of dimension, and I think they also offer a nice flair that conveys the same feeling as the palms did - a wealthier area, warm climate... If you still don't like that, I'm afraid you'll have to pretend those tall and slender trees are actually poplars. I won't tell anyone, and I don't judge you.^^
  • The growing lot flora will also be replaced, but with full-grown trees. It would have been possible to recreate the effect of flora growing taller over time (just like the Maxis flora does), but unfortunately, the game will only display the shadow for the first, smallest version. Hence, as the tree grows to full size, the shadow of the sapling will remain. Apparently this is a game limitation.

BONUS PACK 1, A PLUGIN FOR THE SFBT STREET TREE MOD - this is the first bonus pack intended for those of you who use SFBT's Street Tree Mod. For those of you who are unfamiliar with that mod, it adds streetside parking and streetside trees, and it is highly modular and versatile. Several tree sets come with the mod (e.g. for Maxis and for Cycledogg trees), and depending on which of these tree sets you keep, the corresponding trees will appear. You can mix and match freely, use either set, any combination, or even all of them at the same time.
This is what the bonus pack included in this upload will do:

  • When used in conjunction with the SFBT Street Tree Mod, the contained files should replace the original files that made Maxis trees appear.
  • Maxis_Street_Deciduous_Trees_HD_Replacement.dat - replaces the file "SFBT_Maxis_Street_Deciduous_Trees.dat" and ensures that HD trees will grow instead of Maxis deciduous trees.
  • Maxis_Street_Pine_Trees_HD_Replacement.dat - replaces the file "SFBT_Maxis_Street_Pine_Trees.dat" and ensures that HD trees will grow instead of Maxis pine trees.
  • Maxis_Street_Palm_Trees_HD_Replacement.dat - replaces the file "SFBT_Maxis_Street_Palm_Trees.dat" and ensures that HD palms will grow instead of Maxis palm trees.
  • Like the originals they are based on, these files can be mixed and matched freely. For example, if you select pine trees and palm trees, you'll get a mix of pines (well, their replacements) and palms. If you only use the files for deciduous trees and pine trees, you'll get all kinds of trees, but no palms. (This is independent from your selection for the main mod!)

BONUS PACK 2, AN OVERRIDE FOR SITHLRD98's T21 MOD - this second bonus pack is intended for those of you who may use the WideRadius Curves T21 Mod by Sithlrd98. These add sidewalk pavement, streetlights and trees alonside many smooth road & avenue curves as well as FA (fractional angle) road sections.
This is what the bonus pack will do:

  • All trees will be replaced with HD versions from this mod
  • Instead of the single tree that was used repetitively, randomised trees will now appear for a more varied appearance


Each of the three packs is in a separate download because most of you probably won't use all of the stuff mentioned here.

2 - USE
2.1.1 - Installation

Simply drop the files into your plugins folder. By default, they will unzip into a sub-folder called \Maxis Tree HD Replacement\. However, you can change this to pretty much anything you like. (It's a simple override of the default files, and anything anywhere in your plugins folder will override the game files because plugins load after the game itself).

By default, you will also get the file Maxis Tree HD Replacement_PalmsToCypresses.dat. This file is the one that will override palm trees with cypresses. If you want to see palm trees, simply remove that file. As with the other files, you can also copy it out of and back into your plugins folder as you like, switching back and forth between palms and cypresses.

2.1.2 - Deinstallation

Simply remove the file again. All affected trees will revert back to Maxis trees again, and the corresponding menu icons will no longer be blocked from your menu. No need to bulldoze anything.

2.2 - BONUS PACK 1 (for SFBT Street Tree Mod)
2.2.1 - Installation

First of all, you need to have the SFBT Street Tree Mod installed (see "Dependencies" section for link). Then, I suggest you locate the tree props folder of that mod (by default \SFBT\Street Tree Mod\Tree Props). This folder will contain .dat files for all the tree types that you select while installing the SFBT Street Tree Mod. Simply delete the following files from that folder if present:

  • SFBT_Maxis_Street_Deciduous_Trees.dat
  • SFBT_Maxis_Street_Palm_Trees.dat
  • SFBT_Maxis_Street_Pine_Trees.dat

Then copy any one, two or all of the following files from Bonus Pack 1 into the aforementioned folder:

  • Maxis_Street_Deciduous_Trees_HD_Replacement.dat (for HD deciduous tree replacements)
  • Maxis_Street_Palm_Trees_HD_Replacement.dat (for HD palm tree replacements)
  • Maxis_Street_Pine_Trees_HD_Replacement.dat (for HD pine tree replacements)

You can leave the non-Maxis tree packs in there if you want. In this case, you may get a mixture of SD trees by Pegasus and/or Cycledogg and these HD trees, depending on what combination of packs you left in there.

2.2.2 - Deinstallation

Simply remove the file again, and replace it with any tree packs for the SFBT Street Tree Mod that you want to use instead. If you delete the files from this download and fail to replace them with any of the original files again, no trees will show at all. For deinstallation of the entire SFBT Street Tree mod, see the documentation included in that download.

2.3 - BONUS PACK 2 (for Sithlrd98's T21 mod)
2.3.1 - Installation

Place the included file anywhere in your plugins folder where it will load AFTER the original file. By default, the original file zzzSithlrd98 Wide Radius Curves Curves T21 Data .dat should be in a sub-folder named \Sithlrd98 WideRadius Curves T-21 Mod\. If you place the file from this bonus pack, zzzSithlrd98 Wide Radius Curves Curves T21 Data HD.dat, in the same sub-folder or in any folder that loads afterwards, the trees will change to the HD replacements.

2.3.2 - Deinstallation

Simply delete the file zzzSithlrd98 Wide Radius Curves Curves T21 Data HD.dat from this download again. It will no longer override the original trees, and these should revert to default Maxis trees again. Once again, there's no need to bulldoze anything.

3.1 - BASIC DEPENDENCIES (required in any case)

Obviously, this mod relies on the tree models made by girafe and Orange_o_. In total, Maxis uses 42 tree props plus 8 flora objects that rely on 15 different individual models. The following packs were required to replace them all:

3.2 - DEPENDENCIES FOR BONUS PACK 1 - required for use with the SFBT Street Tree Mod

3.3 - DEPENDENCIES FOR BONUS PACK 2 - required for use with Sithlrd98's T21 mod

If you want to see sidewalk along these smooth curves, you have the following options (only one is required):

NOTE: For any dependency hosted at SC4Devotion (SC4D in short), you must be registered on that site and logged into the site's download area, the BSC File Exchange, in order to see the download button. Please bear in mind that there are separate logins for the forums and for the file exchange. For those of you who may still be unfamiliar with the site: SC4D is another major SimCity community with lots of unique content, so you will not regret making an account there.


That's simple this time: If you like those HD trees that you see and you are not familiar with girafe's and Orange's entire portfolio, just go over to www.sc4devotion.com, access the BSC File Exchange, and use the power search feature to display all of their stuff. Voila, tons of great flora mods - from small flowers to towering trees - right at your fingertips!

I'd like to dedicate this upload to the SimCity community as a whole. We all have been learning from one another, inspiring each other, and helping each other out for almost 15 years now. Whatever we do now benefits from stuff other people have done before us. We are really standing on the shoulders of giants these days, and I'm no exception in this respect. Just look at this upload:

  • Maxis gave us the game we all love, and tools like the Lot Editor and the BAT,
  • Sites like Simtropolis and their respective admin teams give us the place to come together and share,
  • People like CowKilla and SimFox have been instrumental in making the use of 3dsmax viable for BAT,
  • BAT artists like Girafe and Orange_o_ used this to great effect to model the wonderful trees I have been using,
  • iLive and cogeo provided the additional tools that I have used to get these models to do what I had in mind,
  • People like Andreas Roth and Equinox helped me take the first steps in those tools, getting me on the road to where I am now,
  • rsc204 (a.k.a. MGB) taught me a method of making resizing overrides for existing props that I used to tweak the dimensions of some props,
  • Due to all this, I merely had to put these foundations to good use and contribute my little part.

So at a first glance, one might say this is "my mod". But it really is 95% community effort, made possible by a community whose spirit has always been characterised by non-profit sharing. It is a pleasure to be part of such a community, and here's to hoping that it will remain strong for years to come.
That being said, extra kudos to flora masters girafe and Orange_o_ as well as T21 mod authors Andreas Roth and Sithlrd98 once again. You guys are awesome!

T Wrecks, August 8, 2017

NOTE FOR DOWNLOADERS WHO USE THE CASCADIA TREE CONTROLLER: @PaulSawyer kindly reported that he had problems with Maxis palms on roadsides not being replaced as they should by this mod. Apparently this problem could be fixed by changing the loading order. So if you use both the Cascadia Tree Controller and this Maxis HD Tree Replacement Mod and run into the same problem, try changing the order in which both mods load.

If you don't know in which order the game loads plugins and/or need help changing the load order, you will find information on that with a little forum search. If you don't find anything, don't hesitate to ask on the forums or send a PM my way. *:)

What's New 1.0.1   View Changelog


  • fixed two wrong dependency links in the enclosed readme (STEX description was fine)
  • fixed some minor typos in the enclosed readme (STEX description was fine)
  • recompressed enclosed screenshots to decrease download file size by ~400 kB

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Ceafus 88

   1 of 1 member found this review helpful 1 / 1 member

Lovely :)

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Talla 2XLC

   1 of 1 member found this review helpful 1 / 1 member

Awesome, time to replace my  "Sayonara Maxis Trees" Mod i had for so many Years now :)

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Really great, now there is so much more continuity between the parts of the city and lots with Maxis trees and the nice HD ploppables that have been created.  Now even trees on the concrete jungle side streets can stand proud...5aa80371f1560_Screenshot(98).png.6363dfab592895564fa419df0e9bbf6c.png

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I had a review overdue for this mod, the tree selection is spot-on and the SFBT tree mod override is the icing on the cake! Plus, any plugin made by TWrecks is guaranteed to be useful/awesome and of high quality. Time to replace the old one!

And congrats on you 100th upload!!!

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Excellent work!

Love the HD trees...thank you for sharing :)

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Wow, you replace all the lot trees every single one with this, thank you.

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The British Sausage


For so long the curse of Maxis palms lingered... T Wrecks is our lord and saviour!

Nice one T Wrecks!

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Our Sayonara tree mod was quicker to install *:) but certainly less sexy than this one... *:thumb: And kudos for the 100th !

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Wonderful! Those new trees looks gorgeous.

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Nice work. Is it possible to do this mod seasonal? That would be even more awesome!

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Looks and works very well. Great job!

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For all the forest gods of all religions! This is AWESOME!! Using the perfect measures to keep proportions is the key that makes this a completely required plugin for everyone striving for realism.

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This is an awesome Mod! We've been waiting for this for a long time, it was overdue somebody did it! 5/5

Thank you!

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Another milestone reached! A very incredible job...

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thank you and congrats on your 100th upload    this mod will make a huge difference in the appearance of our cities and more thanks for all the effort you put into this  I too am grateful to all the modders and batters who have made this game so much more than  it was originally and continue to improve it and keep it fresh

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