The Kerbin Shuttle Orbiter System: available on Spacedock as multiple modpacks.
Last Update: Community Patch, Dec 3 2017 (see forum post)
NOTE: Manually installing from the links below is the officially supported method for installing KSOS. If you are using any other method to install our mod, be aware that you may be creating errors for yourself, and you will likely not receive support from us.
KSOS requires the following plugins to function properly: