Exile features a "safe zone" around traders where players cannot die, so they can buy new items without worrying about being shot. To allow that, we apply a "god mode" to the player while they are in the safe zones. Also, god mode is being used for in-game admins. This works pretty well. Players cannot be shot, they do not take fall damage, you can drive them over and they survive explosions. However, spinning helicopter rotors still kill players when they run into them.