ShareWare is available at the following sites :
ftp://ftp.texramp.net/pub/games/3dduke13.zip ftp://ftp.is.co.za/.3/gamesdomain/top10/3dduke13.zip ftp://ftp.iglou.com/pub/kali/3dduke13.zip ftp://ftp.apana.org.au/pub/msdos/games/3dduke13.zip