Создаете Скрипт в ServerScriptService пишите эти коды
Script → ServerScriptService
game.Players.PlayerAdded:Connect(function(player)
-- папка leaderstats
local leaderstats = Instance.new("Folder")
leaderstats.Name = "leaderstats"
leaderstats.Parent = player
-- киллы
local kills = Instance.new("IntValue")
kills.Name = "Kills"
kills.Value = 0
kills.Parent = leaderstats
-- валюта
local coins = Instance.new("IntValue")
coins.Name = "Coins"
coins.Value = 0
coins.Parent = leaderstats
end)