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If you want a real Pokémon/Game Freak-esque experience, but better. Play Gaia. One of my favorites.
Glazed or Blazed or whatever it’s called is great too, as well as Light Platinum. It’s been years since I played the last two, they were a little buggy back then, don’t know if they’ve received any updates.
Another one wich I can recommend is Adventures Chapter Red. It’s basically the Manga as a game. iIt’s very story driven, if you are into that.
All of them have Pokemon up to Gen 5 and as far as I can remember, none from Gen 6 onward.