Multimode

Returns the number of players in the game.

In singleplayer, it is set to 1.

The player IDs range from zero to MULTIMODE minus 1.

In the original Duke Nukem 3D, once a player quit, MULTIMODE would decrease permanently, meaning it was impossible for a new player to join mid-game.

It can also be used for when making a loop through all players. Example:

appendevent EVENT_WORLD
  for My_Player range MULTIMODE
  {
    [...]
  }
endevent

While MULTIMODE stores the total of player in the game, numplayers stores only non-bot players.