> Nope, they were mostly written in Assembly.
I was there, Gandalf ;)
(and note how I specifically wrote "dominant high level language", not "dominant language", since assembly coding was indeed very relevant on those machines, for UI apps 100% assembly was quite rare though, and hybrid C/ASM seems to have been more common).
Dominant in which part of the planet?
In my part of the Iberian Penisula it was Turbo Pascal on PC and AMOS/Blitz Basic on Amiga.
With lots of inline Assembly anyway.
If id Software is any indication, apparently they wrote their games in C since their inception in 1990 with Commander Keen.