Megagame

After the video went viral, Wallman says his group of regular players grew from hundreds to thousands of people.

[2] The typical gameplay structure of a megagame is one in which dozens of players compete or cooperate within a set of tabletop and role-playing games.

[1] Megagames typically involve 30-100 players, though some have been played with hundreds of people, and often last a full day.

[3][4] Megagames can encompass a wide range of different settings, scenarios, and rules, including military, historical intrigue, and alien invasions.

[2] Watch the Skies includes a group of players in press organisations who share news stories about what teams have been doing.