OpenTTD works on Haiku. These instructions worked for OpenTTD 1.9.0-rc1.

Using HaikuPorter

You may want to use HaikuPorter. It will download and compile the lastest stable version and all its dependencies. Once you have HaikuPorter configured, just write:

haikuporter openttd

Note: If you run Haiku hybrid with GCC2 as the default architecture (the default download) you need to write.

haikuporter openttd_x86

Getting the source

git clone https://github.com/OpenTTD/OpenTTD.git

Prerequisites

OpenTTD requires some libraries to be installed first. All of them can be installed from HaikuDepot or pkgman.

SDL

pkgman install libsdl_devel

lzo and lzma

pkgman install lzo_devel xz_utils_devel

Fluidsynth (optional)

pkgman install fluidsynth_devel

MIDI SoundFont (optional)

If you want to hear music you'll need a MIDI soundfont. You can use TimGm soundfont.

pkgman install timgmsoundfont

Compile

Now we're ready to compile OpenTTD. Go to the source tree and type

./configure

make

Now you may want to download and install OpenGFX Readme, OpenMSX and Sound Effects Replacement.