Notes
RemarksThe first ZX81 game to ever qualify for the "BASIC Tenliners" competition, not an easy task considering the limitations of ZX81 BASIC (that only supports a single instruction per line).
RemarksThis program was also ported to other platforms by multiple authors:
VIC-20, Ozmoo, Bitshifter: http://psw.ca/robin/?p=301
R: https://lucidmanager.org/data-science/tenliner-cave-adventure/
ZIL: https://vaporware.atlassian.net/wiki/spaces/ZC/pages/202735617/
BBC Micro: http://bbcmicro.co.uk/jsbeeb/play.php?patch=@bc09,3e0:4f2e0d4c2e0d52554e0d;@bc09,2d8:e0;@bc09,2e1:ea;@e4e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