Sod expanshion
http://www.ebgames.com/pc/games/ever...truction/73038
Underfoot expanshion
http://www.ebgames.com/pc/games/ever...nderfoot/77524
If you known what your doing you can make a cdrom or dvd cdrom disk
with digital download one working backup copy. I would go an extra
mile an get Underfoot if getting a digital download more bang for the buck.
or get it from steam