HostData.connectedPlayers

public int connectedPlayers ;

Description

Currently connected players.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void Start() {
        HostData[] hostData = MasterServer.PollHostList();
        foreach (HostData element in hostData) {
            Debug.Log(element.connectedPlayers + " are connected to " + element.gameName);
        }
    }
}