Preferably one that’s not a rom hack, though I dig those too. I’m looking for something a bit harder than the originals and maybe a bit more mature, but still fair and whimsical. I’d like a game with pokemon from as many gens as possible, and fakemons are fine too.
Most of the Drayano hacks are pretty good. I recommend Sacred Gold/ Storm Silver or Renegade platinum. Both are reworks of their respective games with way bigger catchable dex and QOL fixes. If you want something more unique then Gaia, Glazed, and Adventure Red are quite good.