(DIR) ..
 (TXT) About "Portal"
 (HTM) On ifdb.org
       
       AUTHORS
 (DIR) Rob Swigart
 (DIR) Brad Fregger
       
       EXTERNAL LINKS
 (HTM) Play PC version in browser
       Uses DosBox
       
 (HTM) Mobygames page
       
 (HTM) Novelisation
       Google Books preview of 1988 novel version (republished 2005)
       
 (HTM) Scans of manual and map
       
       TAGS
 (DIR) amiga
 (DIR) artificial intelligence
 (DIR) c64
 (DIR) commercial
 (DIR) database
 (DIR) graphics
 (DIR) hypertext novel
 (DIR) science fiction