Fortnite Battle Royale is a 100-man PvP survival mode that is completely independent from the primary Fortnite experience.
Matches begin when all 100 participants deploy together on a flying party bus. As the bus travels over a large island below, players can drop out and parachute to various locations below. After landing, players have two priorities.
The first priority is to locate and gather resources! This includes items such as weapons, ammunition, traps, healing items, shields, and building materials. These can be found all over the island, so be sure to look carefully. In addition to scavenging resources, eliminating opposing players allows their inventory to be looted as well.
The second--and game-winning--priority is to be the last surviving player on the island.
All of this takes place as a deadly storm continually shrinks over the island, restricting the area of play. Players caught inside the storm will continue to take damage until they die or reach a safe area.