Fortnite (free download!) --> Fortnite's "Battle Royale" mode follows similar gameplay mechanics as other battle royale games, particularly PlayerUnknown's Battlegrounds. This mode supports up to 100 players, either individuals or up to four-man squads, attempting to be the last man or team standing as they hunt other players and avoid being killed themselves. Players all start with no equipment outside of a pickaxe for resource gathering, and parachute onto the map. Once they land, they can scavenge for weapons, armor, and resources, the latter which can be used to make structures in the same manner as the "Save the World" mode. Over time, a "storm" surrounds the area, and makes it so that the "safe" area of the map shrinks down in size. Once the "safe" area has shrunk to the smaller circle on the map, it will generate, at a random location, a smaller circle within. Those caught outside the area take damage and potentially die if they remain outside it too long. There are also random air drops of resources, weapons and items that may require players to construct floors and ramps to access, with varying randomized items determined by rarity. (wikipedia)

In short: it's great