I can remember my earliest type-ins were from Creative Computing magazine in early 1976.
We had a student teacher in my high school physics class who let me use her login at the local college’s computing center which had a DEC PDP-11. The terminals were all DECWriter dot-matrix paper terminals except one which had a CRT interface. The games I played where all for the DECWriters though and were all text-based, using 2-3 lines of text (and paper) per move. This is probably where I got my first gameplay of Adventure, (aka Colossal Cave) which originated at Dartmouth a few years earlier.
I kept sneaking into the computer center even after she graduated. It was finally mid-August 1996 when they kindly asked me to stop sneaking-in. Fun times!