Every officially approved Add-On can be easily installed using the in-game Add-On-Manager. But sometimes it’s necessary to install or remove a track, kart or arena manually. This pages tries to provide the necessary information:
The Add-On Storage Folder
Depending on what system you are using, add-ons are installed in one of the following folders:
/usr/share/games/supertuxkart/data/tracks(for older STK versions)
On Mac OS X:
Installing and Removing
Within this folder, the following files and subdirectories exist: icons, karts, tmp, tracks, addons.xml, addons_installed.xml, news.xml
To install an Add-on, simply copy the whole folder with the Add-On to the correspondig subdirectory. Note that Arenas go in the track folder because they are technically tracks.
Uninstalling is done by removing that folder.
/uninstalladdon can be used in networking lobby to install or uninstall Add-ons.