On Jim MacBrayne, author of multiple public domain Commodore text adventures 
including The Golden Fleece, The Holy Grail and The Black Tower. 

I contacted him in June 2018 after coming across a 1989 interview.

According to the interview penned by The Grue (Geoff Rens) in Adventure Probe 
issue 03/11, Jim played his first adventure game in 1981 and, after 
establishing a friendship with Rob Watts, one of the authors, he was 
persuaded to have a stab at writing an adventure himself.

Jim developed a love of Infocom's work and when he moved on to coding games 
for the Amiga, the extra memory and power Hisoft BASIC provided allowed him 
to produce adventures in a similar style.

"It's a long time since I wrote these adventure games and I can't remember 
all the details, but I do know that they were originally written around the 
late '80s and ported to TADS around 1995. They were all originally written in 
BASIC for the Commodore machines and I believe that I've still got the 
original files on floppies in the drawer at my side (whether the floppies are 
still readable or not is a different matter).  I also have my original AMIGA 
in the loft, but haven't had it switched on in years."

Excalibur was the first game that Jim wrote.

"Excalibur goes back a lot further. I can remember very little about it, and 
I do not have any code in my possession. I notice that the screenshot [on the 
Classic Adventure Solution Archive site] is listed as Grana Software, and 
dates from 1983 (when I was 41 years of age ?? ). The owner of Grana was a 
swede named Peter Tegelberg, and I still have him as a friend on Facebook.  
He now is based in London as far as I know, but don't think he now has 
anything to do with computers."

A retired general practitioner from Glasgow, Jim's hobbies now include 
photography and handcrafting (truly beautiful!) classical guitars. You can 
see him at work in this video on his YouTube channel: 
https://www.youtube.com/watch?v=B6PZxbT5nA8

- Gareth Pitchford