PlayerUnknown's Battlegrounds (PUBG) was developed by Brendan "PlayerUnknown" Greene, who had created mods of other games using the film Battle Royale as inspiration. Eventually, those expanded into a full game, which is PlayerUnknown's Battlegrounds. Up to 100 players parachute onto large map to scavenge equipment and weapons to kill the other players. The safe area decreases in size over time, forcing players to have to interact with one another as the area tightens up. The last person or team standing wins.