So a thing that I like about the ‘90s is that laser tag, which came from the hardware with which the U.S. Army got everyone together to rehearse World War III, lost out to paintball, which started with rednecks turning industrial tools on each other for the lulz.

Also obvs FPS multiplayer is a direct descendent of paintball; I was playing CTF and VIP and territories and scenario matches timed on offense/defense and limited-respawn team deathmatch back at the same time I played Doom II with Rhett Grumbkow on 14.4k direct dialup TCP and the best they could do was co-op with friendly fire.