I think keeping the charm of 2d sprites within a world that feels 3d has been done very well, it feels really ambitious for a fan project but definetly has a lot of potential.
Itch.io link: https://undreamedpanic.itch.io/gamma-emerald
Man, I wish this is the art direction that the official Pokémon games used.
If you like this art style, I highly recommend Cassette Beasts. Great Pokémon-like that does enough to feel unique but still scratch that itch.
Cassette Beasts, my beloved