[WinGameStore] Some delisted games not available on Steam

On your Steam wishlist? There won't be a price listed by them, if you sort by price they'll be at the low end. Also, if you go to the store page of the game it will say right there if it's no longer available.

What @Xiangming said, and if you use steamdb you can go to https://steamdb.info/sales/?displayOnly=Wishlist, set price range to 0-0.1 (which will effectively only display games without prices*) and then sort for example by rating or release date - if the game has a release date in the past but no price, it's most likely delisted; rating might be better, but some totally obscure games might be released and still have no rating, so ymmv.

(*) lack of price might also be regional, for example https://steamdb.info/app/37260/ - so you might want to change to $ or € to be sure

Thanks. I'll add them to the op.