People say that many years ago, Long John Silver hid his silver in the cave, but no one has found it.
Originally listed here with a 1983 date, the VIC20 version dates to at least as early as 1982 as it's advertised in Commodore PowerPlay Computing, Volume 1 Number 3, Winter 1982.
(Listed elsewhere as being published by The Guild Adventure Software, the ComputerMat release predates that)
[+] Users who have solved this game
[+] Users currently playing this game
You can download it here for the Vic20+8K ram expansion: https://www.mdawson.net/vic20chrome/vic20/gamebase/vic20/games/Caves%20of%20Silver.zip