Getting Player Amount help?

Just use this

local NumPlayers = game.Players.NumPlayers
print (NumPlayers)

It's easier then you think :)

Of course local v = game.Players.Value wouldn't work. game.Players is not a Value Object, and game doesn't have a Players property. ;-;

One of two good ways (I recommend the second function, as it causes less activity in the game):

while wait(.25) do                  -- This will execute the code block every .25 seconds (continuous, spurring some activity in the game)
    local PlayersInGame = game.Players:GetChildren()        -- I believe you can use :GetPlayers() too?
    print(#PlayersInGame)
end

Or

game.Players.ChildAdded(function () -- This will execute the function every time a Player is added (won't be as continuous, therefore less activity)
    local PlayersInGame = game.Players:GetChildren()        -- :GetChildren() method will get everything in the Players instance. I believe you can use :GetPlayers() too?
    print(#PlayersInGame)       --Will print the amount of players in the instance
end)

EDIT

Apparently there's a "NumPlayer" property. Heheh. Didn't know that. ('._.)

print(game.Players.NumPlayers)
  

I'm keeping the other functions up for reference on how to find the number of objects in a given object. You can try and utilize the functions to self-update an object with a string value for display (such as the Text property for TextLabel)

E.g.

game.Players.ChildAdded(function ()
    local NumberOfPlayers = game.Players.NumPlayers
    script.Parent.TextLabel.Text = NumberOfPlayers .. " are in this game."
  end)