I am in London Canada,
I used to write games for Atari in early 1980s.
According to Personal Computer Museum in Canada,
I wrote the Worlds First Graphics Adventure Game called
Crypts of Terror on an old Atari 400 computer system around 1981.
I was trying for a mash between ADVENT from the PDP-10 and
all the graphics games I had seen. At the time only the Atari 400 had
the colour graphics needed.