Data (Must be in the ServerScriptService)

game.Players.PlayerAdded:connect(function(player)
	game.Workspace:WaitForChild("NumPlayers").Value = game.Workspace:WaitForChild("NumPlayers").Value + 1
	local settings = Instance.new("Folder",player)
	settings.Name = "Settings"
	local afk = Instance.new("BoolValue",settings)
	afk.Name = "AFK"
	local leaderboard = Instance.new("Folder",player)
	leaderboard.Name = "leaderstats"
	local currency1 = Instance.new("IntValue",leaderboard)
	currency1.Name = "Credits"
	local currency2 = Instance.new("IntValue",leaderboard)
	currency2.Name = "Wins"
end)

game.Players.PlayerRemoving:connect(function(player)
	game.Workspace:WaitForChild("NumPlayers").Value = game.Workspace:WaitForChild("NumPlayers").Value - 1
end)