Ahh I used to love writing adventure games with graphics (coloured character ROM graphics!) on my C64 with Commodore BASIC lol. Good memories 
When I was about 7 or 8 and the c64 pretty near to a new machine, me and a friend decided to write some adventure games. We used to call ourselves Zentih software (which I believe is actully in use today for a real business rather than 2 primrary school kids having fun) and our slogan was, "Not bad for 99 cents". We had delusions of selling our software, and due to its humble nature decided 99 cents was the way to go.
Mostly off topic, but good memories nonetheless.
What is semi interesting however was an original way we came up with to control our text adventures. Rather than soley text based, we made up some gfx for the commands and a sprite based cursor, with which a person could select thier command. Additionally inventory would also be shown as graphics rather than text. I guess why I remember this is because some years later games like The Labyrinth (awesome under-rated game in my opinion, the true precursor to point n click adventure games) were released, and later on games like Maniac Mansion and Zakk Mkracken started appearing, all featuring some of the elements of "Zenith Software" adventure games.
Im sure it's nothing more than a coincidence, but boy, would I have liked to have patented it
