Arena Mode is a game mode in Unturned 3.
Arena Mode is a deathmatch where Players spawn in random locations around a map and have to kill each other until only one Player (or one group) is left. Players can only deal damage using ranged or melee weapons. Fists are disabled.
At the beginning of each arena game, everything else on the map but a randomly selected circle will be filled with a yellow area. A white barrier slowly closes in onto the "yellow circle" as the Players fight and Players will receive damage if they are in the white barrier. Every time the white barrier reaches the yellow circle, a new yellow circle will be randomly selected from inside the last one.