Castaway (originally called Island Adventure) is a text adventure game that I wrote in the mid 80′s as an entry in the Young Programmer’s Contest in 80Micro magazine. At the time I was in my early teens, and my steady diet of Scott Adams adventures is easily detectable in the flavour of this adventure.
The original adventure was written in Basic for the TRS-80. I rewrote it in C++ in 2005 as a programming tutorial. The ChesterDesmond version was written a year or so later, and contains extra areas and easter eggs for Chester, to help cheer him up after an unhappy decision he had to make. This gives the later version some inside jokes and some mature content, but the puzzles are the same.