I recall one of the computing magazines of that era, possibly the Dec 77 issue of BYTE you mentioned, published the entire code in BASIC for a space-oriented game. Inputs were simple letter or letter+number commands and outputs were an ASCII drawing of a sector of outer space (complete with * for stars). You would shoot at an alien then skip to another sector before getting counterattacked.

My high school buddies and I desperately wanted to play this game but ... none of us had a computer! So, sitting in the cafeteria at lunch/breaks in our bell bottom pants, we walked thru the code line by line recording the values of variables with pencil on paper. This was when BASIC only allowed 1 or 2 character variable names and only had GOSUBs instead of proper functions. It was slow going at first but we eventually got to understand what sections of the code was doing and could replace line by line with, oh, its doing this again.

I'll have to look for that Dec 77 BYTE so see it that was the magazine. I didn't know it at the time but it was probably very formative for my future IT career.