Oh my god, this must have inspired NetTrek, one of the earliest networked Macintosh games that worked over AppleTalk:
http://retroweb.maclab.org/articles/Online-Games.html
http://retroweb.maclab.org/articles/Online-Games.html
What's interesting is that different servers had different styles of games. One was more like hockey, using tractor beams to pull the puck around the playing field.
To some extent, I still miss this. The gaming was simple enough, and easy to kind of get into.
To this day I'm still looking for a good large electronic game-board touchscreen. (I know there have been some stabs at this... PlayTable?)
It may still work... Still loading over here...