This is almost the original ADVENTURE source, written by Will Crowther and unearthed by Dennis G. Jerz. These files have been minimally modified to compile under GNU g77. The data files have been converted to fixed-field format based on a tab width of 7 and one (erroneous?) blank line has been removed from each.

• advf4-11.f: Derived from the 1977-03-11 sources
• advf4-31.f: Derived from the 1977-03-31 sources
• advdat11.dat: Data file for the 1977-03-11 version
• advdat31.dat: Data file for the 1977-03-31 version
• advsup.f: A few support routines -- RAN, GETLIN, UPCASE -- needed for the code to work under g77

  To compile

  g77 -o advf4-11 -finit-local-zero advf4-11.f advsup.f
  g77 -o advf4-31 -finit-local-zero advf4-31.f advsup.f
  

  This version accepts lowercase characters, and does not reproduce a bug in two-word-command handling in the 1977-03-11 version, but should otherwise play identical to the original.