If you had a PC-DOS computer back in the 1980s you'd probably remember DONKEY.BAS. It is a game written in BASIC and was included with early versions of the PC-DOS operating system. In case it doesn't ring a bell, the screenshot on the right should jog some memories. What's interesting about the game that not many people know is that it was co-written by Bill Gates, the co-founder of Microsoft.
Ubergizmo, DONKEY.BAS now on iOS