FFS. It's people playing games.
So is football. So is the Olympics, the tour de france, wimbledon and kids kicking a can between two rolled up jumpers.
'games' are a way of interacting with rules, sometimes with other people. The rules create a restricted behaviour that enables people to explore interaction. That help people to feel safe to interact in ways they would otherwise not feel comfortable, or simply help a group have fun together. When a bunch of strangers meet at midnight and ride to a cafe to have breakfast it is also a game, a particularly frivolous one. It's all just a game.