static IEnumerable<Dlc> InstalledDlcs(Game game, IHaveDlc hasDlcs) => hasDlcs.Dlcs.Where(x => x.IsInstalled(game));
 static IEnumerable <Dlc> InstalledDlcs(Game game, IHaveDlc hasDlcs) => hasDlcs.Dlcs.Where(x => x.IsInstalled(game));