32bpp Extra Zoom Levels

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32bpp Project
What is the Extra Zoom Project?

The '32bpp Extra Zoom Levels' is a community project, create to implement two more levels of zoom to OpenTTD on top of the the Original levels from TTD. The project also spearheads the inclusion of the 32bpp enhanced graphics to OpenTTD.

Note: 32bpp Extra Zoom Levels is not part of the official development of OpenTTD. However, extra zoom (without the support of extra zoom sprites) was implemented in 1.2.0-beta1.



The Extra Zoom Project adds the following features to the game:

  • Two extra zoom-in levels
  • Better zoom out graphics
  • scale2x up-scale algorithm for 8bpp sprites
  • Modified railway fencing alignment
  • Transparency options give real transparency
  • 32bpp company colours
  • Bigger company manager faces
  • User modifiable brightness and saturation for company colours


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Out of Date
This article or section is outdated. Some of its content may no longer be accurate due to changes in the latest release. Please update this article.
The method of loading 32bpp graphics changed in OpenTTD 1.2.0. The content on this section does not apply to OpenTTD 1.2.0 or newer.

Download - In order to play you first need to download three Game files, Data files and 32bpp graphic files.

  1. Game files - Download the latest version of the Extra Zoom game files here. Select the appropriate download for your operating system. If you don't know what this means, you probably want the file that ends 32bpp-ez-1.1.0-windows-win32.zip
    For different platforms see the Self Compiling Section below for instructions although as the binaries in the previous link are provided by the OpenTTD Compile Farm, it is unlikely you'll need this.
  2. Data files - You can skip this step if you have OpenGFX and OpenSFX or the original TTD files(like trg1r.grf). If you don't, then download both OpenGFX Download and OpenSFX Download. (Don't forget you can use the in-game online content to update those files later)
  3. 32bpp graphic files - Choose one of the nightly packs (recommended) or individual TAR files from the List (outdated).
  4. 32bpp_extra.grf - download latest 32bpp_extra.grf file.

Install - After downloading the required files, we can now begin with the installation process.

  1. Extract the Game files into a Game Folder folder of your choosing. Game Folder means a folder where you start OpenTTD from. It shouldn't be wherever your 'normal' version of OpenTTD is, as this is different. It is recommended that you use your own documents for this purpose.
  2. Extract the OpenGFX and OpenSFX files, into the Game Folder\Data. (If you have any problems, check out the Installing OpenGFX guide and/or the Installing OpenSFX guide
  3. Put the 32bpp graphic files (TAR files/Nightly pack) in the Game Folder\Data as well. (There is no need to un-tar the .tar files, but .zip files need to be unzipped)
  4. UnZip the 32bpp_extra.grf file, but do NOT un-tar it, as this will break it
  5. Place the 32bpp_extra.grf tar file in the Game Folder\Data
  6. Activate 32bpp_extra.grf file in NewGRF Settings menu.

If you need additional help, see here: [1]


Kirby paul tank32.jpg


  • Tar files don't load up in the game - problem fixed in version r18891, upgrade to the latest version.

Known bugs:

  • Smoke behaves incorrectly when zoomed out.
  • Minimap sometimes behaves incorrectly.
  • No sound when train tracks are built at full zoom.

Who is involved?

Artists, designers, coders etc... We'd like you to be involved, Join us in our effort on the 'Extra zoom project' by creating graphics, coding, compiling, organizing, editing here etc...
check out our Forum or the Graphics Development section here, for more information tutorials and general stuff to get you started.

Self Compiling

See this page for information on Compiling OpenTTD

  • Download and apply the latest patch
  • Up/downgrade trunk version to revision of the patch (svn up -rXXXXX)
  • Apply the patch and recompile
  • Download the 32bpp_extra.grf and activate it in the game

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