Hell in GunZ is used to refer to areas of the map which cause any player who enters it to immediately die. These areas are typically found at bottomless pits, and jumping into one will result in a suicide, taking an EXP penalty. Players who fall into Hell will receive a "You have fallen into oblivion" message, along with either "You have committed suicide" or "You have been killed by (Player)".
Players can also flip or lunge opponents into Hell to receive a kill. Players who are killed that way will receive a death, but will not lose EXP.