you seem to have forgotten to activate a few wins
http://www.sgtools.info/nonactivated/OriginalShinobi
Games wins not activated

There are some rare cases where some base steam games are not recognized as owned. This site uses a whitelist for not showing those games, if you find one please report it in the Official forum thread.
Also games that are "Deluxe Edition", "GOTY" or in general a bundle of game+dlcs in a single app (not in a steam package) are usually a false positives.

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Thanks a lot.

Thanks a lot.