There are various modifications that can be implemented atop the fundamentals of the battle royale. For example, Fortnite introduced a temporary mode in an event which is 50-versus-50 player mode in its Fortnite Battle Royale free-to-play game; players are assigned one of the two teams, and work with their teammates to collect resources and weapons towards constructing fortifications as the safe area of the game shrinks down, with the goal to eliminate all the players on the other team.[2]