I have played almost all the Amiga games with networking feature with my friend over a direct modem line over the phone!
Even Quake1 was fun with extra bots added for fun death match.
Gloom was tops when we had only 030's, Skidmarks.
Shame Napalm never got a proper working network feature, or maybe someone got it?
PS: Remember TwoWayChat and Send ? Or how about a fully function mini internet dialup and server setup with Miami, and AmChat and FTP setup for real time coms, file exchange and more modern TCP based games.
These were the days, it was fun, and we were young...