This former shareware game was found here:

http://dscho.com/fruit/

This archive contains the AMOS source code plus a bunch of design documents.
License as described by the author: "feel free to use / redistribute / etc
however you like.", see:

http://eab.abime.net/showpost.php?p=851537&postcount=10

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
[generic]                 4112   10307  39.9% -lh5- 230b Sep  2  1992 Cantaloupe_Src/Analysis.doc
[generic]                  279     612  45.6% -lh5- 7b57 Sep  2  1992 Cantaloupe_Src/Analysis.doc.info
[generic]                  522    2480  21.0% -lh5- c20a Sep  2  1992 Cantaloupe_Src/Contents.Doc
[generic]                  279     612  45.6% -lh5- 95f7 Sep  2  1992 Cantaloupe_Src/Contents.doc.info
[generic]                15857   43139  36.8% -lh5- 8aaf Sep  2  1992 Cantaloupe_Src/Design_Pt1.doc
[generic]                  280     612  45.8% -lh5- 61dc Sep  2  1992 Cantaloupe_Src/Design_Pt1.doc.info
[generic]                13792   39778  34.7% -lh5- cdd9 Sep  2  1992 Cantaloupe_Src/Design_Pt2.doc
[generic]                  278     612  45.4% -lh5- 9d12 Sep  2  1992 Cantaloupe_Src/Design_Pt2.doc.info
[generic]                  383     764  50.1% -lh5- 0f2a Sep  2  1992 Cantaloupe_Src/Disk.info
[generic]                 5652   13585  41.6% -lh5- 8f68 Sep  2  1992 Cantaloupe_Src/Examiner.doc
[generic]                  279     612  45.6% -lh5- 846e Sep  2  1992 Cantaloupe_Src/Examiner.doc.info
[generic]                 5220   12863  40.6% -lh5- 4f76 Sep  2  1992 Cantaloupe_Src/Imp_Test.doc
[generic]                  279     612  45.6% -lh5- 6ee3 Sep  2  1992 Cantaloupe_Src/Imp_Test.doc.info
[generic]                13737   37103  37.0% -lh5- c9a2 Sep  2  1992 Cantaloupe_Src/Maintenance.doc
[generic]                  279     612  45.6% -lh5- 6df9 Sep  2  1992 Cantaloupe_Src/Maintenance.doc.info
[generic]                 1148    2591  44.3% -lh5- e3af Sep  2  1992 Cantaloupe_Src/ReadMe.Doc
[generic]                  277     612  45.3% -lh5- 1aea Sep  2  1992 Cantaloupe_Src/ReadMe.doc.info
[generic]                85377  234666  36.4% -lh5- 8c86 Sep  2  1992 Cantaloupe_Src/SourceCode/CantaLevEd.Amos
[generic]                94381  203218  46.4% -lh5- 4db4 Sep  2  1992 Cantaloupe_Src/SourceCode/Cantaloupe.Amos
[generic]                 6891   18453  37.3% -lh5- c518 Sep  2  1992 Cantaloupe_Src/User.doc
[generic]                  282     612  46.1% -lh5- 58f8 Sep  2  1992 Cantaloupe_Src/User.doc.info
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total        21 files  249584  624455  40.0%            Feb 15 13:22