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OpenTTD's Steam Integration Plugin

This plugin allows OpenTTD to announce what the player is doing on Steam.

Supported OpenTTD

  • OpenTTD 14+

Supported Platforms

  • Windows (32bit, 64bit)
  • Linux (x86_64)
  • MacOS (i386, x86_64, arm64)

Preparation

  • Lookup the latest SDK version here.
  • Run ./download-sdk.sh <SDK version>.

In case you can't execute download-sdk.sh, you have to do some actions manually:

  • Download the latest Discord Game SDK from here.
  • Unpack the zip-file.
  • Copy the public/steam folder into src/ (so there now is a src/steam folder with include-files).
  • Copy the redistributable_bin folder to lib (so there are now folders like linux32 in lib/).
  • Make a folder lib/win32, and move lib/steam_api.* to lib/win32/.

Side-note

https://partner.steamgames.com/downloads/ hosts the SDKs, and sometimes allows direct downloading. But other times, it first require authentication. This makes access the SDK from there a bit problematic, as availability is unpredictable. In result, the SDK is also available in the branch sdk, and is used by the download-script / CI.

If a new SDK is released, it would need to be added to the sdk branch before it is available for the CI.

Building

This is a default CMake Project.

mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=$(pwd)/install ..
make

On MacOS, you need to add -DCMAKE_OSX_ARCHITECTURES=[arm64|x86_64|i386] to the cmake line, to select which of the targets you want to build for.

Installation

make install

This creates a lib folder in the install folder of your build-dir.

In your OpenTTD folder, for example in your Documents folder, there should be a social_integration folder (if not, start OpenTTD once to create that folder). Copy the content of the lib folder into social_integration/steam.

Now start OpenTTD to try out the plugin. Start OpenTTD with -dmisc=1 to get a bit more information about what plugins it sees and how they are loading.