Problem 23 - User in Games with Their Items

SELECT u.Username, g.Name AS [Game], COUNT(i.Id) AS [Items COUNT], SUM(i.Price) AS [Items Price]
  FROM Games AS g
  JOIN UserGameItems AS ugi
    ON ugi.UserGameId = g.Id
  JOIN Items AS i
    ON i.Id = ugi.ItemId
  JOIN UsersGames AS ug
    ON ug.GameId = ugi.UserGameId
  JOIN Users AS u
    ON u.Id = ug.UserId
 GROUP BY u.Username, g.Name
HAVING COUNT(i.Id) >= 10
 ORDER BY [Items COUNT] DESC, [Items Price] DESC, Username