Leaderstat not showing when played?

That was because you didn't actually create an IntValue . IntValues are basically a value which you can store numbers. Such as stats etc To learn more about Leaderstats visit: https://developer.roblox.com/en-us/articles/Leaderboards

The leaderboard script should be

game.Players.PlayerAdded:Connect(function(plr)
	local stats = Instance.new("Folder",plr)
	stats.Name = "leaderstats"
	
	local money = Instance.new("IntValue",stats) -- you can change money to whatever you want
	money.Name = "Money"
	money.Value = 0
end)


game.Players.PlayerAdded:connect(function(player)
local DataStore = game:GetService("DataStoreService")

     

for i,v in pairs(game.Players.PlayerAdded:GetChildren()) do 
local d = DataStore:GetDataStore(v.Name)
local x = Instance.new("NumberValue",stats)
x.Name = v.Name
x.Value = d:GetAsync(player.UserId) or v.Value



end
end)

game.Players.PlayerRemoving:Connect(function(player)
    for i,v in pairs(script:GetChildren()) do 
        print("Getting")
        local DataStore = game:GetService("DataStoreService")
        local d = DataStore:GetDataStore(v.Name)
        d:SetAsync(player.UserId, player.leaderstats[v.Name].Value)
        print("Saved")
    end
end)