Single threaded kind of makes sense for machines with single core CPUs. And multiplayer was usually limited because internet wasn’t that good typically being

Single threaded kind of makes sense for machines with single core CPUs. And multiplayer was usually limited because internet wasn’t that good typically being dialup. Games required more cutting edge machines (maybe 2 years old) I remember getting a notebook with enough power (66mhz, 4 megs of ram) to place doom. Taking my machine to a friends and playing one on one death match over a serial cable.