As of v1.11 players 1-8 are valid options, and the setting can be increased or decreased at any time during the game. Players who wish a greater challenge and bigger rewards can use this command to increase monster hit points and experience gains. Simply type in '/players x' where the x = the number of players you wish the game to simulate. This command works only for single player characters (whether played solo, or in TCP/IP or open games). See the Player Settings page for far more detail.
In patch v1.10 and later, experience and hit points are calculated by the same formula: Once spawned, monsters retain their initial values whether more players enter or leave the game. The game calculates these figures when the monster is spawned when a player moves near enough the monster that it is calculated into existence. When more players are in the game, monsters have more hit points, do more damage, are worth more experience, and are more likely to drop items. Undead monsters take 150% damage from blunt weapons.Monsters without a label are all Animals. Demons and Undead are labeled in the game. All monsters fit into 3 classifications: Demons, Undead, or Animals.
